Question about 1993 Pontiac Grand Am

1 Answer

Car hesitates and has very little compression until it warms up for 10 minutes. My car is a 93 Pontiac Grand Am 6 cylinder. Also engine light is on all the time.

Posted by on

  • mike loshbough
    mike loshbough May 11, 2010

    what is the compression?

×

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.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,066 Answers

Have you done a compression check?  Add Motor Honey or STP. Ultimately it's time for a replacement.

Posted on Mar 09, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

3 Answers

Can catalytic converter on 98 Pontiac grand prix cause misfire on cylinders in car


No, a plugged converter would cause the engine not to breathe properly. Too much back pressure would stall the engine or make it run very poorly. It would not be local to any one cylinder-all of them would be affected.

To diagnose a misfire in one cylinder, well, you start at that cylinder. It could be ignition related- the spark plug and spark plug wire for #6, possibly the ignition coil for #6 in the coil pack for the engine. (A v-6 would have 3 coils in the coil pack, one coil for 2 cylinders.) It could also be fuel related, so the fuel injector for cylinder 6 should be considered. And the last reason for a misfire is usually the most expensive repair: low compression in #6. This may be a head gasket problem, or a piston ring problem, or one of the valves for #6 may not be sealing well, causing low compression and the resultant misfire. The engine computer codes a misfire when it senses low power output from that particular cylinder. The misfire causes a lag in crankshaft rotation, and the crankshaft position sensor senses it.

Feb 01, 2015 | 1998 Pontiac Grand Prix

1 Answer

My car will be driving just fine and then all of a sudden the rpm just drop to 0 and the car dies. The oil lamp light comes then as well. I have checked the oil and it is fine. If I let the car sit long...


The most popular failure with the Pontiac whether you are a 6 cylinder or 4 cylinder. Is the fuel pump module,this module has a faulty strainer that made the vehicle starve for fuel,or even gave it hesitation and low power,go with a aftermarket fuel pump module and check to see if the upgrade has be completed for the pontiac in question,and when a engine stall of course the oil light comes on its the same as turning the ignition to acc and the engine not running.

Aug 07, 2012 | 2003 Pontiac Grand Am

1 Answer

On my 2004 Grand Prix, my car has to be running for at least 45 minutes for some heat to work.The yellow light by the heater blinks while the blower comes on and goes off repeatedly until the light is...


It is possible that your thermostat is stuck open. Normally, the thermostat remains closed when starting cold, confining coolant to the engine block and cylinder head until it heats up. Once the coolant in the block is warm (usually within 10 minutes), the thermostat begins to open and let coolant flow into the radiator to cool it down some. A properly operating thermostat will continue to cycle until the coolant reaches the operating temperature of the thermostat--usually around 180 deg F. Then the thermostat will continue to adjust its opening to maintain that temp.

Thermostats can get stuck in both closed and open positions. When stuck closed, the engine will quickly overheat. When stuck open, the engine will take forever to warm up--especially in cold weather because the coolant is continually pushed into the radiator and cooled off before it ever has a chance to get warm. Changing the inexpensive thermostat may help correct your condition.

Jan 25, 2011 | 2004 Pontiac Grand Prix

2 Answers

WHERE IS O2 SENSOR BANK 1 01 GRAND PRIX 3.8 ENGINE


Standing in front of the car looking at the engine bank 1 is the cylinders on the front of the engine. These are cylinders 1-3-5. On the rear is bank 2 cylinders 2-4-6. The O2 sensor is located screwed into the exhaust manifold or the exhaust pipe on the front of the engine.

Oct 09, 2009 | 2001 Pontiac Grand Prix

1 Answer

99 Grand am Security light comes on every time and car wont start


you cant disable the unit.. it is integral with the engines computer.. turn the key to the on position and leave it for 10 minutes.. the security light should stop flashing in 10 minutes or so , when it does , start the vehicle.. if it is a recurring problem , replace the ignition lock cylinder as it is a common problem with these cars.

Jun 29, 2009 | 1999 Pontiac Grand Am GT

1 Answer

99 S-10 Engine hesitates only when warm


If it has miss and hesitation only warm not cold you may have a coolant temp sensor problem . but if the service engine soon light is off i would chek ignition system(plugs, wires ,boots).most likely one of the cylinders missfires when hot.

Jan 27, 2009 | 2001 Chevrolet S-10

2 Answers

1999 pontiac firebird


I dont understand,
what were the compressions readings for each cylinder?
Please list and when you find a low cylinder put about a spoon full of engine oil in the spark plug hole and re do the compression test and send me that result also please.

Sep 17, 2008 | 1999 Pontiac Firebird

Not finding what you are looking for?
1993 Pontiac Grand Am Logo

Related Topics:

56 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...