Question about 1996 Buick Park Avenue

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Car starts fine cold. runs all day but if you shut off engine it needs to sit for 2 hours before starting

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  • Buick Master
  • 3,103 Answers

Ecm bad..

Posted on Dec 28, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

emissionwiz
  • 75797 Answers

SOURCE: Car shuts down while driving

It is very likely the part that is giving you the problem is a Crankshaft Position Sensor, they go open circuit when they get hot, then after it cools it becomes a good circuit again, this is very frustrating, had the same issue with my Buick a few years ago, replaced the coils and the ignition module at a cost of hundreds, DID NOT CHANGE A THING, the crank sensor fixed the problem and was $30.00 from Buick.

Posted on Oct 13, 2008

  • 2 Answers

SOURCE: Car starts then stalls once the engine warms up.

You need new timing belt and gears. Buicks gears are made of plastic, and become a big glob. Nothing for the timing belt to grab onto.

Posted on Oct 13, 2008

  • 21 Answers

SOURCE: My 93 Buick Park Ave. shuts off randomly when driving.

Check your fuel filter!

Posted on Apr 13, 2009

ftw1952
  • 10319 Answers

SOURCE: I have a 1991 buick regal stalls and shut off after warming up

egr valve is not opening up when the engine reaches it normal operating temperture

Posted on Feb 07, 2010

  • 105 Answers

SOURCE: 2000 LeSabre starts but runs very rough and stalls. After

My 2002 Lesabre (app 115000 miles) started something like this. Also the loose gas cap had been coming on for quite a while. I replaced the vacuum line from the air intake to the fuel sensor. It is under the engine cover (twist off the oil filler to remove the cover). There are two hoses together that come of the air intake. The small one goes to the top of the engine. The other goes across the front and makes a 180 turn back to the sensor. Chances are the 180 piece is cracked. It all comes from the dealer as one unit. $25
Seems to have fixed my problems. So if your car is running a little rough. Shutters under load. If the gas cap loose is coming on or probably a number of symptoms this might be the answer. I would replace this item. A cheap try.

Posted on Mar 12, 2010

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1 Answer

Running rough


Most likely it would be the fuel filter. Sometimes debris can get stuck in the filter and clog it up. Letting it sit lets debris settle hence the cold start being fine. I suggest changing the fuel filter. If that does not fix the problem change the pump also. If you are looking for a slim chance but possible cheap fix try putting some fuel injector cleaner through the system. This might fix the problem even if it is the fuel filter but be warned it is a temporary fix and the fuel injector cleaner does leave a gummy substance on the fuel filter and might make your problem worse. So if you choose this route you should change your fuel filter in the not to distant future.

Mar 23, 2014 | 1995 Chevrolet K1500

1 Answer

Takes 10 or more trys to start if it sits for several hours if it sits for a couple of days it will start right up


I happened to have owned the exact Model and Year of this car. I did not have this problem but can suggest a few potential parts which can do this.

What you are describing is likely due to a "heat sink" condition in electrical components or failure of the "cold start sequence" to reset.

The cold start sequence needs a water sensor to tell the ECM to reset from driving Mode to Starting Mode. Cars usually have 2 identical sensors with 1 working the dash gauge and the other operating the signal to the ECM. This is a silent failure and usually not picked up by the onboard diagnostics. It is an inexpensive part. But, the ECM could be bad if it does not do anything with the signal. The ECM is expensive.

The other part I have in mind works the same way with the ECM. The O2 sensors also tell the ECM what to do. The cold setting for the O2 is different than the Hot setting. When the O2 is hot, it makes the engine get a signal to run lean, often too lean to start. Sometimes this error is picked up on the onboard diagnostics, but not always. Someone would need to unplug the O2 sensors and test them electrically to see what values they show.

Relays can also cause a problem like yours. After shutting off the engine relays can be hot. These hot relays will cool over time, but the points or coils inside may not work properly when the engine is restarted too soon.

Last, have your battery checked. A hot battery can drop voltage and it may be at that tipping point where electrical values are changed throughout the system.

Nov 23, 2013 | 1994 Mercury Grand Marquis

1 Answer

The diagnostic connector on my 1990 Geo Prizm is dirty. Does this effect anything. It is hard to start when cold or has been sitting for a few hours. When it does start it runs rough for a few minutes...


if it contines to run fine dont mess with however if it starts acting out again sound like possibly loss of fuel pressure have it check next with gauge on fuel system allow it to sit overnight and see what gauge reads in am BEFORE trying to start engine let me know if you need help

Mar 07, 2011 | Geo Prizm Cars & Trucks

1 Answer

I have a 96 Jimmy 4.3 vortec engine. When it's cold it sometimes doesn't want to start and seems to be flooding, when you let it sit for an hour or so it will start right up. Once you get it started it...


Sounds like one of two problems, The first would be a sticking throttle plate, you can fix this if you did the things you mentioned above to do so all you need to do is get to the throttle plate and with carburetor cleaner or top engine cleaner you can buy from any GM dealer Use a tooth brush to clean the throttle plate inside and outside and the ring the plate after you get it clean put it t gether and start it and get it warm next pull a hose feeding into the intake and put it in the can of Top engine cleaner and allow the cleaner to be sucked into the engine until it is all in the engine and shut off and let sit for 20 minutes. The start it up and run it till it's running smoothly now run it for the day and let it sit over night, try starting it, if it does you found the problem and fixed it if it does not start then do this push the throttle plate down to the floor and hold and crank over if it starts your set if it still has the gas smell in the morning check the cold start valve and see if gas is running out of it if it is then the cold start valve may have to be replaced. you also need to check the engine one more time and see if the EGR valve is sticking open after it turns off and cools down. Hope this helps thanks for using fix-ya and write back if you need more help.

Sep 21, 2010 | 1996 GMC Jimmy

3 Answers

Engine shut down after 15miles then won't start for half hour


just went thru the same think wit a s 430 it was the crank position sensor . 60 bucks at auto zone and it took me 5min. 2 install if u need help feel free to call me 918 808 9706 chris

Feb 20, 2009 | 2000 Mercedes-Benz S-Class

1 Answer

1988 Celica GT Cold start problem and smoke on startup


blue smoke is evidence of oil burning and is most likely valve seals. this can be done on most cars with head still on by applying air to the cylinders this keeps valves up while spring is removed

Sep 10, 2008 | 1990 Toyota Celica

1 Answer

1996 Chevy Corsica


Well, something idoesnt like to be warm in it, ive seen this caused by multiple things, but most commonly its the starter going out it gets warm from the engine running and the brushes expand and short, cools off brushes shrink and VOla Vrooom Vroom!

So id start with the starter

Don

Jul 30, 2008 | 1996 Chevrolet Corsica

1 Answer

New fuel pump.............


hi there i do believe you have a faulty or leaking injector because it should stay pressurized when you shut off the engine

Jul 23, 2008 | 2002 Daewoo Lanos

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