Question about 2000 Pontiac Grand Prix GTP
Ok hit the fuel tank wile some body keep the engine starting, hit it hard 2 or 3 times, if the car runs ok, the problem is your fuel pump.
that happens when you run out of gas, because the fuel pump cools down when gasoline pass thru, if you run out of gas the pump get overheat and goes out, most of the time.
Posted on Dec 15, 2014
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Posted on Jan 02, 2017
is this a supper cahrged grand prix if so check fuel pump resistor located behind right front head light or on fire wall its made of white ceramic has to wires going to it jump the two wire on the connection going to it if it runs longer then 15 min then replace resiustor.
Posted on Jan 03, 2009
Sounds like your security system is shutting the car down. You should be able to leave the key on for 15 minutes and it will reset itself. Make sure you are using factory keys, and they are in good condition.
Posted on May 28, 2009
Sounds like air in fuel line. Purge fuel line. By "crank", do you mean engine spins but won't catch? Try starter fluid in intake.
Posted on Jul 10, 2009
Hello! You're symptoms sound very much like a common problem associated with the fuel pump resistor. The GTP engine has a two speed fuel pump. There are two relays that control the fuel pump via the PCM module. The fuel pump relay and fuel pump hi-speed relay. Tied into the hi-speed relay is a fuel pump resistor that may go bad.
Symptoms vary but primarily the engine will start but die in a matter of seconds due to insufficient fuel pressure.
Here is a picture of the relay - which is located in the fuse box in the engine compartment:
What you can do to both diagnose this and either narrow it down to this or disqualify it as the culprit is remove relay #15, and bend out the tab labeled "85", and then reinstall the relay. If this does solve your problem, then you need to replace the Fuel Pump Resistor. Doing this will bypass the resistor, and place the fuel pump in "high" speed mode at all times. Once you have replaced the resistor, you need to bend the tab back to its normal position and replace the relay.
NOTE: while this may be a helpful diagnosis tool, and provide a temporary fix - doing this procedure for a prolonged period of time can lead to fuel pump failure. Use this at your own risk.
Hope this helps and good luck!
Posted on Sep 25, 2009
Known GTP problem.
You most likely have a bad fuel pump resistor, which controls 2 speeds of the fuel pump.
To check to see if this is the problem, there is a trick you can do and its very easy to do. Go to the attached link, and bend the tab my finger is pointing at and then plug it back in. If your car starts and runs fine, well we just solved the problem.
Link ->> http://www.boredandstupid.com/relay.jpg
Posted on Jan 04, 2010
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