Question about 2000 Pontiac Grand Am GT
I have a 2000 Pontiac grand am - the smog pump comes on at initial cold start up and shuts off after approximately 2 minutes - I never hear it coming back on, I am not sure if it comes on while I am driving - can you give me some specifics secquence on how the smog pump should work?
Smog pump or secondary injection pump works on cold starting to inject clean air into the exhaust pipe to help catalytic convertor to burn extra unburned fuel in exhaust gases and improve clean exhaust emissions then shuts off when catalyst reaches the right temp. so i guess your air pump is fine.
Posted on Aug 28, 2009
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Posted on Jan 02, 2017
as you face the engine the thermostat bell is on the right (drivers side) Follow the radiatoe hose. Remove the two bolts and raise the bell still attatched to the hose. the thermostat is there with the rubber seal. You can gently pry the thermostat out with a screwdriver or something similar. Put in new thermostat be sure it is the same as the old one, and then replace or change the seal (be sure it is the smae size and thickness as the old one as I got the wrong size from Napa) Then replace the bell, and tighten, but not over tighten. I hope this helps!
Posted on Jan 31, 2009
The governor pressure sensor is the most likley cause however an inspection of fluid or debris in trans pan would be a good idea to make sure there's nothing excessive in it. Attached is a list of possible causes however the senor would be the most common.
Posted on Mar 26, 2009
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