0.4 Introduction
The Fiat Punto range was Introduced in March 1994 with 1106 cc, 1242 cc and 1372 cc petrol engines and a 1698 cc diesel engine. At first, models wero only available in 5-door Hatchback form, however 3-door versions followed in May 19SM and Cabriolet and Automatic versions In June 1994. At the seme lime a lurbo diesel model was launched. Power-ass«sted steering and ABS were offered as options in October 1994, and the 6-speed 55SX and norrrally-asptraled dieset followed in June 1995. In June 1997 a minor facelift was undertaken which Included improvements to the suspension and steering and various cosmetic changes. This facelift also saw the introduction of fie ! 242 cc DOHC 1S-valve engine available In top of the range models.
Ait engines covered in this Manual are fitted with single- or double-overhead •camshaft engines, end all models have fully independent front and rear suspension. The distinguished lines of the bodywork together with tho high level rear lighting have made the Rat Punto a very popular small car.
Provided that regular servicing is earned out In accordance with tho manufacturer's recommendations, the Flat Punto should prove reliable and economical. The engine compartment is well-designed, and most of the items needing frequent attention are easily accessible.
The Fiat Punto Team
Haynes manuals are produced by dedicated and enthusiastic people working in close co-operation. The team responsible for the creation of this book included:
Authors
Sub-editor Page Make-up Workshop manager Photo Scans
Cover illustration & Une Art
Wiring diagrams
A.K. Legg laemimi
Spencer Drayton
Ian Barnes
Steve Churchill Paul Buckland
Steve Tanswell John Martin
Roger Healing
Matthew Marke
We hope the book will help you to get the maximum enjoyment from your car. By carrying out routine maintenance as described you will ensure your car's reliability and preserve its resale value.
Your Fiat Punto Manual
The aim ol this manual is to help you get the best value from your vehicle, It can do so-ln several ways. It can help you decide what worfc must be done (even should you choose to get It dons by a garage), provide information on routine maintenance and servicing, and give a logical course of action and diagnosis when random faults occur. However, it is hoped that you will use the manual by tackling the work yourself. On simpler jobs, It may even be quicker than booking tho car into a garage and going there twice, io leave and collect it. Perhaps mosl important, a lot of money can be saved by avoiding the costs a garage must charge to cover Its labour and overheads, The manual has drawings and descriptions to show the function of the various components, so that their layoul can be understood, Then the tasks are described and photographed in a clear step-by-step sequence. References to the 'left' or 'right' are In the sense of a person in the driver's seat facing forward.
Acknowledgements Thanks are duo to the Champion Spark Plug Company, who supplied the Illustrations of various spark plug conditions. Thanks are also due to Oraper Tools Limited, who provided some of the workshop tools, and to all those people at Sparkford who helped In the production of this manual. We take great pride In tho accuracy of information given In this manual, but vehicle manufacturers make alterations and design changes during the production run of a particular vehicle of which they do not Inform us. No liability oen be accepted by the authors or publishers for loss, damage or Injury caused by any errors in, or omissions from, the information given.
Roadside repairs 0.7
I Jump starting will get you out of trouble, but you must correct | whatever made the battery go fiat in the first place. There are three possibilities:
t
The battery has been drained by repeated attempts to start, or by leaving the lights on.
2
The charging system (s not working property (alternator drivebelt slack or broken, alternator wiring fault or alternator Itself faulty).
3
The battery Itself is at fault (ehctrotyte low, or battery worn out).
When jump-starling a car using a booster battery, observe the following precautions:
• Before connecting the booster battery, make sure that the ignition is switched off.
• Ensure that all electrical equipment (lights, heater, wipers, etc) is switched off.
• Take note of any special precautions printed on the battery case.
Jump starting • Make sure that the booster battery Is the same voltage as the discharged one in the vehicle.
• If the battery is being jump-started from the battery in another vehicle, the two vehicles MUST NOT TOUCH each other.
• Make sure that the transmission is in neutral (or PARK. In the case of automatic transmission).
Make sure that the lump leads will not come into contact with the fan. drive-belts or other moving parts of the engine.
Start the engine using the booster battery and run it at idle speed. Switch on the lights, rear window demister and heater blower motor, then disconnect the jump leads in the reverse order of connection. Turn off the lights etc.
Roadside repairs 0.9
Puddles on the garage floor or drive, or obvious wetness under the bonnet or underneath the car, suggest a leak that needs Investigating. It can sometimes be difficult to decide where the leak is coming from, especially if the engine bay is very dirty already. Leaking oil or fluid can also be blown rearwards by the passage of air under the car, giving a false impression of where the problem lies.
A
Warning: Most automotive oils and fluids aro poisonous. Wash them off skin, and change out of contaminated clothing, without delay.
Identifying leaks
The smell of 0 fluid leaking from the car may provide a clue to what's leaking. Some fluids are distinctively coloured. It may help to clean the car carefully and to park It over some clean paper overnight as an aid to locating the source of the leak. Remember that some leaks may only occur while the engine is running.
Sump oil
Engine oil may leak from the drain plug...
Antifreeze
Leaking antifreeze often leaves a crystalline oeposit like this.
Oil from filter
A leak occurring at a wheel Is almost certainly brake fluid.
Gearbox oil
Gearbox oil can leak from the seals at the inboard ends of the drivoshafts.
Power steering fluid
Power steering fluid may leak from the pipe connectors on the steering rack.
When ail else falls, you may llnd yourself having to get a tow home - or of course you may be helping somebody else. Long-distance recovery should only be done by a garage or breakdown service. For shorter distances. OIY towing using another car is easy enough, but observe the following points: • Use a proper tow-rope - they are not expensive. The vehicle being towed must display an ON TOW sign in its rear window. • Always turn the Ignition key to the ON position when the vehicle is being towed, so that the steering lock is released, and that the direction indicator and brake lights will work. • Only attach the tow-rope to the towing eyes provided.
• Before being towed, release the handbrake and select neutral on the transmission. • Note that greater-then-usual pedal pressure will be required to operate the brakes, since the vacuum servo unit is only operational with the engine running. • On models with power steering, greater-than-usual steering effort will also be required. • The driver of the car being towed must keep the tow-rope taut at all times to avoid snatching. • Make sure that both drivers know the route before setting off. • Only dnve at moderate speeds and keep the distance towed to a minimum. Drive smoothly and allow plenty of time for slowing down at junctions.
Towing
• On models with automatic transmission, special precautions apply(see Chapter 7B. Section 1). If In doubt, do not tow, or transmission damage may result. • The front towing eye is supplied as part of the tool kit stored in the luggage compart-ment. To fit the eye pnse out the plastic cover from the front or rear bumper using a screwdriver, then screw the eye onto the threaded pin as tightly as possible.
A
Warning: To prevent damage to the catalytic converter, e vehicle must not be push'started, or started by towing, when the engine is at operating temperature. Use jump leads (see Jump starting).
o»i4 Weekly checks
Tyre condition and pressure
l( is very important that tyres are In good condition, and at the correct pressure - having a tyre (allure at any speed is highly dangerous. Tyre wear is influenced by driving style • harsh braking and acceleration, or fast cornering, will ail produce more rapid tyre wear. As a general rule, the front tyres wear out faster than the rears. Interchanging the tyres from front to rear ("rotating' the tyres) may result in more even wear. However, if this is completely effective, you may have the expense of replacing ail four tyres at once! Remove any nails or stones embedded In the tread before they penetrate the tyro to cause deflation. If removal of a nail does reveal that
r
the tyre has been punctured, refit the nail so (hat its point of penetration is marked. Then Immediately change the wheel, and have the tyre repaired by a tyre dealer. Regularly check the tyres for damage (n the form of cuts or bulges, especially in the sidewails. Periodically remove the wheels, and clean any dirt or mud from the Inside and outside surfaces. Examine the wheel rims for signs of rusting, corrosion or other damage, Light alloy wheels are easily damaged by •kerbing"1 whilst parking; steel wheels may also become dented or buckled. A new wheel Is very often the only way to overcome severe damage.
New tyres should be balanced when they are fitted, but it may become necessary to re-balance them as they wear, or if the balance weights fitted to the wheel rim should fall off. Unbalanced tyres will v/ear more quickly, as will the steering and suspension components. Wheel imbalance is normally signified by vibration, particularly at a certain speed (typically around 50 mph). If this vibration is fett only through the steering, then II Is likely that |ust the front wheels need balancing. H, however, the vibration is felt through the whole car. the rear wheels could be out of balance. Whoel balancing should be carried out by a tyre dealer or garage.
-j Tread Depth • visual check The original tyres have tread wear safety bands {8}, which wiU appear when the tread depth reaches approximately 1.6 mm. The band positions are indicated by a triangular mark on the tyre sidewail (A).
Tyre tread wear patterns
2 Tread Depth * manual check Alternatively, tread wear can be monitored with a simple, inexpensive device known as a tread depth indicator gauge.
2 Tyre Pressure Check Check the tyre pressures regularly with the tyres cold. Do not adjust the tyre pressures immediately alter the vehicle has been used, or an inaccurate setting will result Tyre pressures are shown on page 0*18.
Shoulder Wear Centre Wear Uneven Wear
Underinflatlon {wear an both sides) Under-lnflatton will cause overheating of the tyre, because the tyre will flex too much, and the tread will not sit correctly on the road surface. This will cause a loss of grip and excessive wear, not to mention the danger of sudden tyre failure due to heat build-up. Check and adjust pressures Incorrect wheel camber (wear on one side] Repair or renew suspension parts Hard cornering Reduce speed!
Overinflation Over-inflation will cause rapid wear of the centre part of the tyro tread, coupled with reduced grip, harsher ride, and the danger of shock damage occurring in the tyre casing. Check and adjust pressures
It you sometimes have (o inflate your car's tyres to the higher pressures specified tor maximum load or sustained high speed, don't forget to reduce the pressures to normal afterwards.
Front tyres may wear unevenly as a result of wheel misalignment. Most lyre dealers and garages can check and adjust the wheel alignment (or 'tracking") for a modest charge. Incorrect camber or castor Repair or renew suspension parts Malfunctioning suspension Repair or renew suspension parts Unbalanced wheel Balance tyres Incorrect toe setting Adjust front wheel alignment Note: The feathered edge of I he treed which typifies toe wear is best checked by feel.
1A»1
Chapter
1
Part A:
Routine maintenance & servicing - petrol models
Contents
Air
filter renewal 18 Automatic transmission filter and fluid change 2B Auxiliary dr
and filter renewal 3 Evaporative loss system check 27 Exhaust system check 8 From brake pad check 5 Fuel filter renewal 17 Headlight beam adjustment 23 Hinge and lock lubrication 22
Hose and fluid leak check 7 Idle speed and CO content check and adjustment .11 Ignition system check 20 Introduction 1 Lambda/oxygen sensor check 25 Manifold mounting check 16 Manual transmission oil level check 26 Manual transmission oil renewal .32 Pollen filter renewal 10 Rear brake shoe check 29 Regular maintenance 2 Road test 24 Spark plug renewal 19 Steering and suspension check 12 Timing belt renewal 30 Underbody sealant check 6 Valve clearance check and adjustment 15
Degrees of difficulty
Easy, suitable for ^ novice with little experience ^
Fairty easy, suitable for beginner with ^ some experience
FaMy difficult, ^ sitable for competent jj^ DIY mechanic ^
Difficult, suitable for experienced DIY aJ mechanic ^
Very difficult, ^ suitable for expert DIY or professional ^
expert22 fl/ia http://rutracker.org
Maintenance schedule - petrol models 1A.3
The maintenance Intervals in this manual are provided with the assumption that you, not the dealer, will be carrying out the work. These axe the minimum maintenance intervals recommended by us for vehicles driven daily.
if you wish to keep your vehicle in peak condition at all times, you may wish to perform some of these procedures more often. We encourage frequent maintenance, because it enhances the efficiency.
performance and resale value of your vehicle. When the vehicle Is new, it should be serviced by a factory-authorised dealer service department, In order to preserve the factory warranty.
Every 250 miles (400 km) or weekly Q Refer to Weekly checks
Every 5000 miles (7500 km) or
6 months - whichever comes first • Renew the engine oil and filter (Section 3)
Note: Frequent oil and fitter changes am good tor the engine. We recommend changing the oil at the mileage specified here, or at least
twice
a year if the mileage covered Is a less.
Every 10 000 miles (15 000 km) or
12 months - whichever comes first
In
addition to the items listed above, cany out the following: Q Check the operation of the brake warning lamp (Section 4) • Check the front brake pads for wear (Section 5) • Check the underbody and sealant for damage (Section 6) • Hose and fluid leak check (Section 7) • Check the condition of the exhaust system and its mountings (Section 8) • Check the condition of the driveshaft gaiters (Section 9) • Renew pollen filter (Section 10) • Check exhaust gas content and idle speed (Section 11) • Check the steering and suspension components for condition and security (Section 12)
Every 20 000 miles (30 000 km) or
2 years - whichever comes first
In
addition to the Items listed above, carry out the following: • Check and if necessary adjust the tension of the auxiliary drlvebelt(s) (Section 13) • Check the freeplay and height of the clutch pedal (Section 14) • Check and if necessary adjust the valve clearances (Section 15) HI Check and if necessary tighten inlet and exhaust manifold mountings (Section 16) • Renew the fuel filter (Section 17) D Renew the air filter element (Section 18) O Renew the spark plugs (Section 19) • Check the condition of the HT cables (Section 20) • Check the engine management system (Section 21) Q Lubricate all hinges and locks (Section 22) O Check the headlight beam adjustment (Section 23) • Carry out a road test (Section 24)
Every 30 000 miles (45 000 km) or
3 years - whichever comes first In addition to the items listed above, cany out the following: • Check the operation of the Lambda sensor (Section 25) • Check and if necessary top-up the manual transmission oil level (Section 26) • Check the operation of the evaporative loss system (Section 27) • Automatic transmission inner filter and fluid renewal (Section 28)
Every 40 000 miles (60 000 km) or
4 years - whichever comes first In addition to the items fisted above, carry out the following: • Check the rear brake shoes for wear (Section 29) • Renew the timing belt (Section 30)"
*Noto: Although the normal interval for timing belt renewal is 70 000 miles (105 000 km), It is strongly recommended that the belt Is renewed at 40 000 miles (60 000 km) on vehicles which are subjected to Intensive use, ie. malniy short Journeys or a let of stop-start driving. The actual belt renewal Interval Is therefore very much up to the individual owner, but bear in mind that severe engine damage will result if the belt breaks.
Every 60 000 miles (90 000 km) or
6 years - whichever comes first in addition to the items listed above, cany out the following: • Check the condition and operation of the crankcase emission control system (Section 31)
Every 80 000 miles (120 000 km) • Renew the manual transmission oil (Section 32)
Every 2 years
(regardless of mileage) • Renew the engine coolant (Section 33) • Renew the brake fluid (Section 34)
ia«8 Every 10 000 miles - petrol models
5.2 Check the thickness of the pad friction material through the hole on the front of the caliper should be removed and cleaned. The operation of the caliper can then
bIbo
be checked, and the condition of the brake disc itself can be fully examined on both sides. Refer to Chapter 9 for further Information. 4 If any pad's friction material is worn to the specified thickness or less, all four psds must tie renewed as a set. Refer to Chapter 9. 5 On completion refit the roadwheels and lower the car to the ground
6 Underbody sealant check
I
1 Jack up the front and rear of the car and support It securely on axle stands (see Jacking and vehicle support). Alternatively position the car over an inspection pit. 2 Check the underbody. wheel housings and side sills for rust and/or damage to the under-body sealant. If evident, repair as necessary.
7 Hose and fluid leak check ^
I
1 Visually Inspect the engine joint laces, gaskets and seals for any signs of water or oil leaks. Pay particular attention to the areas around the camshaft cover, cylinder head, oil (liter and sump joint faces. Bear in mind that.
A leak In the cooling system will usually show up as white or rust~coloured deposits on the area adjoining the leak
over a period of time, some very slight seepage from these areas is to be expected -what you are really looking for is any indication of a serious leak (see Haynes Hint). Should a leak be found, renew the offending gasket or oil seal by refemng to the appropriate Chapters in this manual. 2 Also check the security and condition of all the engine-related pipes and hoses. Ensure that all cable-ties or securing clips ore In place and In good condition, Clips which are broken or missing can lead to chafing of the hoses, pipes or wiring, which could cause more serious probioms In the luture. 3 Carefully check the radiator hoses and heater hoses along their entire length. Renew any hose which is cracked, swollen or deteriorated, Cracks will show up better if the hose is squeezed. Pay close attention to the hose clips that secure the hoses to the cooling system components. Hose clips can pinch and puncture hoses, resulting in cooling system leaks. 4 Inspect all 'he cooling system components {hoses. |olnt faces etc.) for leaks. A leak in the coolmg system will usually show up as white-or rust-coloured deposits on the area adjoining the leak. Where any problems of this nature are found on system components, renew the component or gaskel with reference to Chapter 3. 5 Where applicable, inspect the automatic transmission fluid cooler hoses for leaks or deterioration. 6 With the vehicle raised, inspect the fuel tank and filler neck for punctures, cracks and other damage. The connection between the filler neck and tank Is especially critical. Sometimes a rubber filler neck or connecting hose will leak due to loose retaining clamps or deten orated rubber. 7 Carefully check all rubber hoses and metal fuel lines leading away Irom the fuel tank. Check for loose connections, deteriorated hoses, crimped lines, and other damage. Pay particular attention to the vent pipes and hoses, which often loop up around the fitter neck and can become blocked or crimped. Follow the lines to the front of the vehicle, carefully inspecting them all the way. Renew damaged sections as necessary. 8 From within tne engine compartment,
check the security of all fuel hose attachments and pipe unions, and inspect the fuel hoses and vacuum hoses for kinks, chafing and deterioration. 9 Where applicable, check the condition of the power steering fluid hoses and pipes.
8 Exhaust system check fe
1 With the engine cold (at least an hour after the vehicle has been driven), check the complete exhaust system from the engine to the end of the tailpipe. The exhaust system is most easily checked with the vehicle raised on a hoist, or suitably supported on axle stands (see Jacking and vehicle support), so that the exhaust components are readily visible and accessible. 2 Check the exhaust pipes and connections for evidence of leaks, severe corrosion and damage. Make sure thai all brackets and mountings are in good condition, and that all relevant nuts and bolts are tight, Leakage at any of the Joints or in other parts of the system will usually show up as a black sooty stain in the vicinity of the leak. 3 Rattles and other noises can often bo traced to the exhaust system, especially the brackets and mountings. Try to move the pipes and silencers. If the components are able to come Into contact with the body or suspension parts, secure the system with new mountings Otherwise separate the joints {if possible) and twist the pipes as necessary to provide additional clearance.
9 Driveshaft gaiter check
9.1 Checking the condition of a driveshaft gaiter
1
1 With the vehicle raised and securely supported on stands (see Jacking and vehicle support), turn the steering onto full lock, then s'owly rotate the roadwheel. Inspect the condition of Ihe outer constant velocity (CV) joint rubber garters, squeezing the gaiters to open out the folds. Check for signs of cracking, splits or deterioration of the rubber, which may allow the grease to escape, and lead to water and grit entry into the joint. Also check the security and condition of the retaining clips. Repeat these checks on the Inner CV joints (see Illustration), If any damage or deterioration Is found, the gaiters should be renewed (see Chapter 8, Section 3). 2 At the same time, check the general condition of (he CV joints themselves by first holding (he driveshaft and attempting to rotate the wheel. Repeat this check by holding the inner joint and attempting to rotate the driveshaft. Any appreciable movement indicates wear in the joints. wear In the driveshaft splines, or a loose driveshaft retaining nut
Every 20 000 miles - petrol models ia-h
clearance within specification. For example, if the measured valve clearance was 1.27 mm too great, a shim thicker by this amount will be required. Conversely, if the clearance was 1.27 mm too small, a shim thinner by this amount will be required. 13 Shims have their thickness (mm) engraved on them; although the engraved side should be fitted so as not to be visible, wear still occurs and often obliterates the number. In this case, measuring their thickness with a metric micrometer is the only method to establish their thickness (see illustration). t4 In practice, if several shims have to be changed, they can often be interchanged, so avoiding the necessity of having to buy more new shims than is necessary. 15 If more than two or three valve clearances are found to be incorrect, it will be more convenient to remove the camshaft for easier removal of the shims. 16 Where no clearance can be measured, even with the thinnest available shim in position, the valve will have to be removed and the end of its stem ground off squarely. This will reduce its overall length by the minimum amount to provide a clearance. This job should be entrusted to your dealer as it is important to keep the end of the valve stem square. 17 On completion, refit the camshaft cover and gasket, air cleaner and duct, and spark plugs. 18 lower the vehicle to the ground.
16 Manifold mounting check
Refer
1O
Chapters 4A. 48 and 4D and check tne tightness of the nuts and bolts securing the inlet and exhaust manifolds.
17
Fuel
filter renewal I I
Warning: Before carrying out the !\ f°llow'n9 operation, refer to the precautions given In Safety firstI A
15.13 Shim thickness is marked on the tower face (here 4.20 mm) at the beginning of this manual, and follow them Implicitly. Petrol Is a highly-dangerous and volatile liquid, and the precautions necessary when handling it cannot be overstressed. Note: 1242 cc (8-vatve) engine mode's from 1998 onwards are equipped with a modified fuel system incorporating a fuel fitter integral with the fuel pump. On these engines fuel filter renewal is not required. 1 The fuel filter is situated underneath the rear of the vehicle, on the right-hand side of the fuel tank (see illustration). To gain access to the filter, chock the front wheels, then jack up the rear of the vehicle and support it on axle stands (see Jacking and vehicle support). 2 Unscrew the bolt securing the filter to its support bracket. 3 Noting the fitted position of the filter body, release the retaining clips and disconnect the fuel hoses from the filter. The correct position is indicated by an arrow marked on ihe filter body 4 Remove the filter from the vehicle. Dispose safely of the old filter; it will be highly flammable, and may explode if thrown on a fire. 5 Locate the new filter into position, ensuring that the arrow on the filter body is pointing in the direction of the fuel flow, as noted when removing the old filter. The flow direction can otherwise be determined by tracing the fuel hoses back along their length. 6 Connect the fuel hoses to the filter and lighten the clips, then locate it in the support bracket and tighten the mounting bolt.
17.1 Fuel filter location on tho right-hand side of the fuel tank 7 Start the engine, check the filter hose connections for leaks, then lower the vehicle to the ground.
18 Air fitter renewal
I
f f 08 cc and 1242 cc (8-valve) engines 1 Prise open the spring clips and withdraw the air cleaner cover a little way from the main body (see illustration). Leave the cover attached to the hot air tube and inlet duct. 2 Lift out the filter element (see illustration). 3 Remove any debris that may have collected inside the air cleaner and wipe the inner surfaces clean. 4 Fit a new air filter element In position, ensuring that the edges are securely seated. 5 Refit the air cleaner top cover and snap the retaining clips into position.
1242 cc (16-valve) engines 6 Undo the three bolts securing the front of Ihe air cleaner cover to the main body. Lift the cover up at the front, disconnect the rear retainers and move it clear of the main body {see illustration). Leave the cover attached to the hot air tube and inlet duct. 7 Lift out the filter element (see illustration). 8 Remove any debris that may have collected inside the air cleaner and wipe the inner surfaces clean.
18.1 Prise open the spring clips... . and remove the filter element (8-valve engines)
18.6 Undo the three bolts (arrowed) and disconnect the air cleaner cover rear retainers (16-vatve engines)