20 Most Recent 1991 Buick Park Avenue Questions & Answers

i just came across this problem myself the other day. i have a 91 buick park avenue that sometimes won't start. i checked several things out like cable connections and coil pack etc. etc. come to find out it was the wiring that came off the coil pack and connects to the crank sensor. the wiring that ran over top of the water pump had finally heated up so bad the coating on the wires had melted and when the engine got hot enough the wires would come in contact and send false signals to the computer not letting it start. after the car cools down and the wires contract it would start. so check the wires from the coil pack to the crank sensor to make sure the wires are not melted together.

1991 Buick Park... | Answered on Oct 04, 2019

Look in the trunk on the ant side and pull back the the felt and you will see where it connects and disconnects. You may have a broken antenna lead. At the bottom of all electronic antennas is a plastic lead that fits in the motor to wind the antenna up or down. See if that is still attached or broken. If the motor is still good you only need to replace the stem, but if there is no life to the motor then you will have to replace it.

1991 Buick Park... | Answered on Jun 25, 2019

Best to just keep a conversion chart nearby...or label your gauge with Celcius...

1991 Buick Park... | Answered on Oct 20, 2018

there is a vacuum switch near passager fire wall. check it

1991 Buick Park... | Answered on Feb 22, 2018

Cant really see why replacing a crank snsor would help a car crank, although i understand why it would start when cranking.
Maybe you have a duff battery or a failure on your charging system.
I would strongly suggest using a diagnostic computer to realise the correct area of fault before guessing and spending lots of money on the wrong parts.


1991 Buick Park... | Answered on Jan 12, 2018

You like replace part's ? Reading in factory service repair information how the system's work , using a step by step diagnostic procedure ,testing the electrical circuit's with DVOM - digital volt ohm meter is how to find electrical problems . Not looking for magical fixes . Your best bet , take it to a automotive electrical specialist .

1991 Buick Park... | Answered on Dec 20, 2017

Try makking sure both battery terminals posts are clean and connected good and the battery is fully charged failing that tap the starter motor with a hammer while someone else tries to start it, here is a link to module locations on a 92 likely the same

1991 Buick Park... | Answered on Dec 19, 2017

if car shuts off while driving it could be a bad crank sensor. a bad crank sensor will shut car off while driving, then it will not start for about 10 minutes, when it starts it runs fine until it goofs up again. the popping could be the sensor for it controls timing along with the cam sensor.

1991 Buick Park... | Answered on Nov 25, 2017

hi do you have a good pedal. or does the pedal go to the floor

1991 Buick Park... | Answered on Nov 15, 2017

There is a problem with the connections , ckeck the plug in connector , pull on wires at connector . Check with continuity tester , or ohm meter also check wire from altenator to battery ...

1991 Buick Park... | Answered on Jun 11, 2017

Sound like the cam sensor is loose and not seated properly or has something foreign on it.

1991 Buick Park... | Answered on Jun 06, 2017

This would not be caused by the calipers, it would be the Master cylinder or the ABS hydraulic control unit.

1991 Buick Park... | Answered on Jan 24, 2017

Here are the common cause of surges, cold stalls, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours.
To correct this problem I want you to get a can of intake cleaner (ABOUT $5.00) from any local auto parts store like NAPA or Carquest, do not use carburetor spray, intake cleaner only or u will damage the Teflon coating inside the throttle valve and air bypass valve, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

1991 Buick Park... | Answered on Dec 16, 2016

A chilton manual will give you a diagram specially if you have a twilight sentinel system. You can get one at auto parts stores or online.

1991 Buick Park... | Answered on Sep 09, 2016

I would seriously have a cat put back on you need that back pressure and have the O2 sensors replaced. Sounds like it may be time for a major tune up

1991 Buick Park... | Answered on Jun 23, 2016

you need to get a new ign. lock cylinder and chip key. Or you can get a lock cylinder and copy your old key with a regular key no chip. Take new cylinder, put old chip key in it. Plug into harness at the bottom of steering column just behind the dash, fine orange wire from existing one in the column. Hide lock cylinder under dash and start car with copy of old key.

1991 Buick Park... | Answered on Apr 03, 2016

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