Question about 1991 Pontiac Grand Am

1 Answer

Will not start when engine warm

My daughter has a 91 grand am, car starts up fine when engine cold, but once car gets warm it will either stall or if parked will not start again till cold. Pretty sure it is electrical car seems to lose spark when warm. Could it be ECM and how do you replace that?

Posted by on

  • 1 more comment 
  • kng913 Oct 10, 2008

    I also have a 1991 grand am with a 2.5 engine starts fine when engine is cold but stalls when hot or when turned off while hot will not re-start till engine is cooled off. I've replaced the ignition control module this did not work. Please Help!

  • Anonymous May 04, 2009

    soon as my 1991 grand am warms up u have wait tell it cools off

  • Anonymous Apr 01, 2014

    "when car sits for a while or it is cold when starts, the valves make a loud tapping noise, it goes away after car gets warm. ( not sure if it is the valves or not, that's just what it sounds like

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 702 Answers

Sounds more like your ignition module is getting hot and not working. I'd go there first before replacing the ECM. You can remove the ignition module and most NAPA stores have the ability to test them for you. Make sure they test it at least 5 times. This way it'll simulate starting and stopping.

Posted on Jul 23, 2008

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Starts right up but once it warms up it dies have messed with the air gas screws that's fine don't know what the problem is


My car runs good when it's cold but stalls once it warms up ...

www.badasscars.com/index.cfm/page/ptype...id.../prd289.htm
My car runs good when it's cold but stalls once it warms up? ... In this situation, you can usually re-start the engine once it has hada chance to cool back ... it'll fill-up and exits fuel right up and out the vent tube which dumps it down the middle of ...

Car starts and after warmed up.. it dies!! HELP! - Honda-Tech

honda-tech.com/...del.../car-starts-after-warmed-up-dies-help-2797652/
Jun 28, 2010 - Car starts and after warmed up.. it dies! ... but if i let it sits for awhile till the engine is cool down it starts right up but after its warmed up.. it dies.

Troubleshooting an Engine that Stalls at Idle When Warm ...

www.gearheaddiva.com/.../troubleshooting-an-engine-that-stalls-at-idle-...

Dec 21, 2015 | Cars & Trucks

2 Answers

1997 grand marquis wont restart when cold


change air filter and fuel filter clean fuel injectors.faulty coolant temperature sensor will cause cold start problems.

Jan 04, 2013 | 1997 Mercury Grand Marquis

1 Answer

I am haveing trouble with my 1996 Mazda B2300, When I start my truck after its been sitting for any length of timeI have to rev the engine to get it started, I have to continue reving until engine is warm...


Replace the temperature sending unit/sensor. This sensor tells the computer to put the engine into cold start mode and it then sets idle a bit higher and puts a bit more fuel into the engine to keep it running without having to touch the throttle. Once it's warm, sensor tells computer to go to normal run mode and it's done. No problem.

Dec 19, 2017 | 2005 Dodge Caravan

2 Answers

As you've probably heard before my 91 cav starts fine gets warm stalls at lights starts right back up but cuts off when i put it in gear


pull off the transmission transition switch wire pluged on to tranny
start car drive should be fine never hook op again 0 money
or pay 700 dollars to install a new one
or buy switch pull tranny and install your self

Jul 14, 2010 | 1991 Chevrolet Cavalier

1 Answer

91 GMC G2500 5.7L 350 Stalling when warm


You should try looking at the transmission fluide, it must be short. If it is, you should go buy a transmission fluid. And make sure you car pipes has no leak.

Jan 11, 2010 | GMC G2500 Cars & Trucks

1 Answer

Engine runs fine, no problem want's tempature is


I had a similar problem with a Ford Excursion, it turned out to be intake manifold gaskets. It would stall then start right up again, it ran fine during warm up. But, once fully warmed up it would stall at stop lights and stuff like that. I did get a check engine light, the code was lean condition. I don't know on a Jeep, sorry I can't be of more help.

Dec 17, 2009 | 1998 Jeep Grand Cherokee

1 Answer

My 95 Jeep Grand Cherokee V8 keeps stalling when I start it. Only happens when its warm. Cold start OK. Many thanks. Rob.


hi, this problem to me sounds like the oxygen sensor needs replacing as when the vehicle is first started or from cold you will find it starts with no problems but once its up to temperature then you start getting problems.
This is due to the oxygen sensor(lambda sensor as its proper name) not working when the engine is cold it only starts working when the engine is up to temp so if this is when your getting the problems then this is what i would look at first.

Let me know how you get on or if you need further assistance ok

Nov 12, 2009 | 1995 Jeep Grand Cherokee

Not finding what you are looking for?
1991 Pontiac Grand Am Logo

Related Topics:

683 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

78936 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...