Question about 1991 Pontiac Grand Am

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How to replace water pump on 1991 pontiac quad 4

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2.3L Engine

  1. Disconnect the negative battery cable
  2. Detach the oxygen sensor connector.
  3. Properly drain the engine coolant into a suitable container. Remove the heater hose from the thermostat housing for more complete coolant drain.
  4. Remove upper and lower exhaust manifold heat shields.
  5. Remove the bolt that attaches the exhaust manifold brace to the manifold.
  6. Break loose the manifold to exhaust pipe spring loaded bolts using a 13mm box wrench.
  7. Raise and safely support the vehicle. NOTE: It is necessary to relieve the spring pressure from 1 bolt prior to removing the second bolt. If the spring pressure is not relieved, it will cause the exhaust pipe to twist and bind up the bolt as it is removed.
  8. Remove the manifold to exhaust pipe bolts from the exhaust pipe flange as follows:
    1. Unscrew either bolt clockwise 4 turns.
    2. Remove the other bolt.
    3. Remove the first bolt.
  9. Pull down and back on the exhaust pipe to disengage it from the exhaust manifold bolts.
  10. Remove the radiator outlet pipe from the oil pan and transaxle. If equipped with a manual transaxle, remove the exhaust manifold brace. Leave the lower radiator hose attached and pull down on the outlet pipe to remove it from the water pump.
  11. Carefully lower the vehicle.
  12. Remove the exhaust manifold, seals and gaskets.
  13. Loosen and reposition the rear engine mount and bracket for clearance, as required.
  14. Remove the water pump mounting bolts and nuts. Remove the water pump and cover assembly, then separate the two pieces.

Posted on Feb 23, 2012


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Posted on Jan 02, 2017

  • 574 Answers

SOURCE: belt on pontiac quad 4 seems to short

Do you have the belt routing diagram on the car? It may not be the right belt. Is it breaking? Check the tension pulley and all other pulleys to see if they turn freely

Posted on Sep 11, 2009

  • 262 Answers

SOURCE: replace thermostat for 1995 pontiac quad 4 engine

The thermostat is located under the intake manifold in the lower radiator rigid coolant pipe. The pipe must be removed for access to the thermostat.

Posted on Feb 24, 2010

  • 580 Answers

SOURCE: can i just take out one oil pump and replace it

All you have to do is replace it & it is available at any good auto store. Good luck!

Posted on Apr 26, 2010

  • 130 Answers

SOURCE: Where is the fuel pump

ususally in the fuse block on the engine conpartment, youll see it. or it deffirence like in 3 years on models there running loose by the firewall. hope this helps

Posted on Aug 01, 2010

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  • 1949 Answers

SOURCE: I have a 1991 Pontiac Grand Am 2.3 MFI Quad 4.

nope not a fuel problem need to have coils tested

Posted on Dec 11, 2010

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