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GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 387
TBI EQUIPPED 5.0L ENGINE
1982-1983 CROSSFIRE FUEL INJECTION MODELS
Fig. 7: Crossfire inje ction upper plenum and gasket
1. Disconnect the negative batte ry cable at the battery.
2. Remove the air cleaner assembly.
3. Drain the cooling system.
4. Disconnect the fuel inlet line.
5. Remove the exhaust gas re circulation (EGR) solenoid.
6. Disconnect the wiring fr om the idle air motors, injectors, and the throttle
position sensor (TPS).
7. Disconnect the fuel return line at the rear TBI unit.
8. Remove the power brake booster line.
9. Disconnect the accelerator and crui se control cables, unbolt the cable
bracket from the manifold and tie t he cable and bracket assembly out of
the way.
10. Disconnect the positive crankcase vent ilation valve hose at the manifold
and move the hose aside.
11. Mark and disconnect any vacuum hoses which will interfere with removal of the manifold.
12. If you plan on removing the TBI units from the upper manifold plate, remove the fuel balance tube (connec ting the units) at this time.
13. Remove the bolts which attach the upp er manifold plate (or TBI plate) to
the intake manifold. Lift the TBI and plate assembly off of the intake
manifold.
14. Remove the distributor as previously outlined.
15. Disconnect the upper radiator hos e from the thermostat housing.
16. Disconnect the heater hose fr om the intake manifold.
17. Remove the intake manifold-to- cylinder head bolts and lift the intake
manifold assembly off of the engine.
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To install:
18. Clean the sealing surfaces.
19. Install the gaskets and apply a
3/16 in. (5mm) bead of RTV sealant on the
front and rear ridge of the cylinder case.
20. Hold the gaskets in place by ex tending the RTV bead up onto the gasket
ends. Use sealer at the water passages.
21. Position the intake manifold as sembly onto the engine and install the
intake manifold-to-cylinder head bolts. Torque bolts in sequence to 25-45
ft. lbs. (34-61 Nm).
22. Connect the heater hose to the intake manifold.
23. Connect the upper radiator hose to the thermostat housing.
24. Install the distributor.
25. Position the TBI and plate assembly on the intake manifold with a new
gasket. Install the bolts which attach the upper manifold plate (or TBI
plate) to the intake manifold and torque to specification.
26. If the TBI units on CFI engines were removed, install the fuel balance
tube (connecting the units).
27. Connect vacuum hoses which were disconnected for removal of the manifold.
28. Connect the positive crankcase ventilation valve hose.
29. Install the cable bracket to the m anifold and connect the accelerator and
cruise control cables.
30. Install the power brake booster line.
31. Connect the fuel return line at the TBI unit.
32. Connect the wiring to the idle air motors, injectors, and the throttle
position sensor (TPS).
33. Install the exhaust gas re circulation (EGR) solenoid.
34. Connect the fuel inlet line to the TBI unit.
35. Install the air cleaner assembly.
36. Connect the negative battery cable at the battery.
37. Fill the cooling system.
38. Start the engine and check for leaks.
Fig. 8: Crossfire fuel injection intake manifold bolt torque sequence
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GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 394
39. Tighten the runner to plenum bolts to
25 ft lbs. (34 Nm). Start in the
center and work outwards.
40. Install the distributor.
41. Connect the fuel lines.
42. Install the EGR valve solenoid.
43. Connect the control cables to the throttle body.
44. Connect all remaining hose and wiring connections.
45. Fill the cooling system.
46. Connect the negative battery cable.
EXHAUST MANIFOLD
REMOVAL & INSTALLATION
EXCEPT 2.5L ENGINES
Fig. 1: Exhaust manifold bolts for most V6 engines up to 1992
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Fig. 2: Exhaust manifold bolts for most V8 engines up to 1992
Fig. 3: On some engines, the bolts are held by lock tabs
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Fig. 6: Removing the exhaust manifold
1. Disconnect the negative battery cable.
2. Remove the air cleaner on carbureted engines.
3. If applicable, remove the ai r cleaner pre-heater shroud.
4. Disconnect the air injecti on reaction pipes, if equipped.
5. Unplug the oxygen sensor connector.
6. Label and unplug the spark plug wires.
7. Remove the spark plug wire heat shields, if equipped.
8. Remove any components which may interfere with removal.
9. Disconnect the exhaust pipe from the manifold and hang it from the
frame out of the way.
10. On some engines, it will be necessary to bend the locktabs from the bolt.
Remove the end bolts, then the center bolts. Remove the manifold.
A thin wall 6-point socket, sharpened at the leading edge and tapped onto the
head of the bolt, simplifies bending the locktabs.
To install:
11. Make sure the mating surfaces are clean.
12. Install a new gasket, if applicable.
13. Position the exhaust manifold onto the engine. Torque the attaching bolts
to:
• 1982-1992 V6 engines: 25 ft lbs. (34 Nm)
• 1982-1992 V8 engines: 26 ft lbs. (35 Nm)
14. Bend the locktabs over the bolts.
15. Connect the exhaust pipe to the manifold.
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GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 398
16. Install all components removed.
17. Connect the oxygen sensor.
18. Install the spark plug wire heat shields.
19. Connect the spark plug wires.
20. If equipped, install the air
cleaner pre-heater shroud.
21. If equipped, connect the air injection reaction pipes.
22. Connect the battery.
2.5L ENGINE
Fig. 7: Exhaust manifold bol t torque sequence for 2.5L engine
1. Disconnect the negative batte ry cable at the battery.
2. Remove the air cleaner assembly , be sure to mark any disconnected
hoses for proper reinstallation.
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GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 399
3. Unplug the oxygen sensor and disconnect the exhaust pipe from the
exhaust manifold.
4. Remove the engine oil level dipstick and tube.
5. Remove the exhaust manifold atta ching bolts and remove the manifold.
To install: 6. Position the exhaust manifold onto the engine with a new gasket. Torque
the bolts, following the correct sequenc e, to 44 ft lbs. (60 Nm).
7. Install the engine oil level dipstick tube and dipstick.
8. Connect the exhaust pipe to the exhaust manifold.
9. Engage the oxygen sensor connector.
10. Install the air cleaner assembly and connecting hoses.
11. Connect the negative battery cable at the battery.
RADIATOR
REMOVAL & INSTALLATION
Fig. 1: Removing radiator upper shield bolts
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When servicing the engine, be absolutely sure to mark vacuum hoses and
wiring so that these items
may be properly reconnected during installation. Also,
when disconnecting fittings of metal lines (fuel, power brake vacuum), always
use two flare nut (or line) wrenches. Ho ld the wrench on the large fitting with
pressure on the wrench as if you were tightening the fitting (clockwise), THEN
loosen and disconnect the smaller fitting fr om the larger fitting. If this is not
done, damage to the line will result.
CAUTION - When draining the coolant, keep in mind that cats and dogs are
attracted by the ethylene gl ycol antifreeze, and are quite likely to drink any that
is left in an uncovered container or in puddles on the ground. This will prove
fatal in sufficient quantity. Always drai n the coolant into a sealable container.
Coolant should be reused unless it is contaminated or several years old.
2.5L ENGINE
Fig. 1: Cylinder head bolt torque sequence for 2.5L engine
1. Disconnect the negative battery cable.
2. Drain the engine block and radiator of coolant.
3. Raise and safely support the vehi cle. Remove the exhaust pipe and
lower the vehicle.
4. Remove the oil level indicator tube.
5. Remove the air cleaner.
6. Unplug the electrical and vac uum connections and disconnect the
linkage from the TBI unit.
7. Disconnect the fuel lines.
8. Remove the EGR valve.
9. Disconnect the heater hoses from the intake manifold.
10. Remove the ignition coil.