Question about 1997 Pontiac Grand Prix

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My 1997 grand prix idiles high when you start it stays at 2to 3 grand on r.p.m

If you turn it off and restart a few times it will come down is ther two sencers on the throdle body ?

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  • Pontiac Master
  • 21,873 Answers

The most common causes of high idle speed is a faulty idle air control valve, a sticking throttle cable, or dirty throttle body.
It could also be a vac leak, but that usually does not come and go.

Posted on Apr 20, 2013

  • andrew Apr 20, 2013

    thanks for your help

  • Ryan Tessmer
    Ryan Tessmer Jun 21, 2014

    Check the Throttle Position sensor I had this issue one time and it turned out when I replaced the acoustic cover I had just knocked the sensor out...

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6ya6ya
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Posted on Jan 02, 2017

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wyatt1582
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SOURCE: abs and traction control light faults after a brake job. 2005 Pontiac grand prix

You have a bad sensor at one of the tires that need replacing that operates ABS and traction control. If you take it in to a shop it will run $130 but they can find which sensor is causing the problem. But if you do it you might have to replace all 4 sensors to make sure you got the right one. Every hard to diagnoses. Its better for the shop cause they can get electrical read outs for each sensor.

Posted on May 21, 2009

polarcycle
  • 1392 Answers

SOURCE: starts and runs 3-5 seconds and shuts down

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

  • 44 Answers

SOURCE: my 00 pontiac grand prix starts 3 seconds and shuts down

P1122 is a throttle position sensor code. P1629 is a theft deterrent system code. P1122 will set when the voltage signal from the throttle position sensor drops below 0.1 volts. Normally, the sensor should measure between 1 volt at idle and 4 volts at full throttle. A failed throttle position sensor could easily cause your problem.

As for the theft deterrent system code, with that code set, the car shouldn't start at all (if the code is active). With P1629, the engine computer should refuse to deliver fuel to the engine. This code can be stored for up to 40 warm up cycles before clearing itself, so unless it is currently active, there may not be any need to worry about it.

I would inspect the wiring and connectors leading to the throttle position sensor. If that wiring is good, I would replace the sensor and see where that got me. Give that a try and let us know how things go.

Posted on Jul 28, 2009

ahmed_mmm
  • 72 Answers

SOURCE: SRS airbag light flashes 4 times and then stays on

u have to diagnose it to know the fault .
WARNING the airbag system doesn't work when SRS illuminates

Posted on Sep 16, 2009

KCGTODAD
  • 169 Answers

SOURCE: 1997 grand prix gtp. Tire pressure/abs light

Hello! This indicates a fault with the wheel speed sensor/ABS sensor. Any major auto parts retailer can pull the details of this code (which sensor) for free, which will help you identify if the wiring is loose or damaged or if the sensor will need to be replaced. If you need to replace the sensor - you will need to replace the entire wheel bearing assembly, as the sensor is internal.


Thanks for using FixYa!

Posted on Nov 02, 2009

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1 Answer

99 grand prix, oil level light comes on when first started then after shut off and restart it will not come on for the rest of the driving time ie, running errands


oil drains to pan then takes a few seconds to refill filter upon starting.
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I have a 97 grand prix gt and although it has a few little problems the one that is really puzzling is that while I am driving down the road it will die. Now if I put it in neutral it will fire right back...


time for a new computer.
my 95 bonneville did the same thing.
starts fine runs like new but will shut off can restart but will keep doing same thing.
put in new puter and runs like new.
make sure you remove the metal plate and the chip from the old puter and save the plate and screws for the new one.
most are rebuilt by cardone they are good.

Feb 16, 2011 | 1997 Pontiac Grand Prix

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My 97 grand prix idles fast when i start it, normally, if i let it run for a little bit, i can shut the engine off and restart it and it gets better...any ideas?


It runs fast because the choke and or high idle are set. This is normal, after it warms up, give it a little gas and let off, it should idle down.

Jun 06, 2010 | 1997 Pontiac Grand Prix

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i would start with fuel pressure test first to see if pressure is constant or fades,,

Feb 18, 2010 | 1997 Pontiac Grand Prix

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How do i refill the radiator properly after changing the water pump? (1997 pontiac grand prix)


Fill the radiater completly then sart the car and let it warm up.After it starts putting heat out of the defroster the top up the rad and let it run a few more minutes then shut it off.Wait about a minute,top up ther rad and put the cap back on,then restart and top up the overfvlow bottle.

Dec 07, 2009 | 1997 Pontiac Grand Prix

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My 1997 Pontiac Grand Prix Gt 3.8 ltr.isn't running right.


This is a known issue for your model and for GrandAm's. Best to take it to your dealer.

Aug 13, 2009 | 1997 Pontiac Grand Prix

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Trouble starting after parked over night


Clean or replace the idle air control valve.

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