runs rough

20

Asked by Dec 30, 2013 at 03:37 PM about the 1996 Pontiac Grand Prix

Question type: Maintenance & Repair

1996 pontiac grand prix,  car is hard to start, with this an intermittment problem, the other
day it was very hard to start and while driving home, car died, It would restart (difficult) and
was running very rough, like timing was off, when placed in drive, car would die. Ended up
call tow truck. The check engine light is Not on, with the only dashlight lit being low
coolant which comes on and off since having a new radiator installed

3 Answers

216,595

Check the fuel pressure or for a vacuum leak. Top off the coolant too. Let us know what you find.

1 out of 1 people think this is helpful.
20

all are connected, coolant topped off. No change, car hard to start with very rough idle

2 out of 2 people think this is helpful.
58,815

If this is a GT model with the 3.8 L V6 pull the oil dipstick. Does it have white milky "goop" on it? If so your intake gaskets have most likely failed. These engines are notorious for that. Also, check the crank shaft position sensor, it's plug and wiring. Another trouble spot. The low coolant light issue is from whomever installed the new radiator not drilling out the two dimples in the plastic radiator tank where the low coolant sensor goes onto the radiator. One final thought. If your Grand Prix has over 100,000 miles on it you're due for a tune up. This consists of plugs and wires. As part of the tune up have them check your coil packs as well. Given the age of your car they may be failing. If 1 is bad/weak, replace all 3. They'll soon follow the dying one. HTH. -Jim

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • 08 Pontiac grand prix 3.8L V6 running rough out of the blue 5 answers

    I was driving my car this morning and it was running perfectly fine. Stopped somewhere. Then when I got back in my car and tried to start it. It did not start right away and is all of a sudden run...

    2008 Pontiac Grand Prix

    -

    Maintenance & Repair

  • I have a 95 grand prix and had heads and gaskets done, and now it runs rough and stalls out 7 answers

    In may of this year I had a coolant leak. Had heads pressure tested. Intake gaskets,Exhaust gaskets, Head gaskets, head bolts,Manifold gaskets,EGR gaskets, & Pcv grommet replaced. New water pump, new ...

    1995 Pontiac Grand Prix 2 Dr SE Coupe

    -

    Maintenance & Repair

  • car will start real rough chug and then die 10 answers

    its a 1996 grand prix special edition coupe 3100 v6 i drove it to the gas station put gas in it and about 3 miles down the road started running real rough and wanting to die i turned a corner and it c...

    Pontiac Grand Prix

    -

    Maintenance & Repair

  • 93 Grand Prix Rough Idle 8 answers

    1993 Pontiac Grand Prix 2 Dr SE Coupe

    -

    Maintenance & Repair

  • Running Rough 1 answer

    My pontiac grand am is running rough, got louder, it dies sometimes when I stop at a red light. Sometimes it also jumps really hard when i put it in drive.

    2000 Pontiac Grand Am SE

    -

    Maintenance & Repair

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 3,814 nationwide Grand Prix listings starting at $900.

ZIP:

Search Pontiac Grand Prix Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 3,870
#2 Tom Demyan
Tom Demyan
Reputation 2,570
#3 munron
munron
Reputation 2,060
View All

Related Models For Sale

Used Chevrolet Impala
937 Great Deals out of 35,462 listings starting at $1,995
Used Pontiac Bonneville
8 Great Deals out of 669 listings starting at $995
Used Pontiac Grand Am
1,699 listings starting at $1,000
Used Chevrolet Monte Carlo
13 Great Deals out of 1,701 listings starting at $2,000
Used Chevrolet Malibu
1,122 Great Deals out of 82,793 listings starting at $1,800
Used Ford Mustang
582 Great Deals out of 41,215 listings starting at $1,699
Used Chevrolet Camaro
475 Great Deals out of 39,922 listings starting at $3,499
Used Jeep Grand Cherokee
999 Great Deals out of 65,972 listings starting at $1,500
Used Pontiac Firebird
18 Great Deals out of 808 listings starting at $3,000
Used Honda Accord
1,081 Great Deals out of 76,804 listings starting at $1,395

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
14 Great Deals out of 472 listings starting at $900
2007 Pontiac Grand Prix For Sale
519 listings starting at $1,997
2006 Pontiac Grand Prix For Sale
3 Great Deals out of 638 listings starting at $1,550
2005 Pontiac Grand Prix For Sale
458 listings starting at $5,900