My car lunges, jerks, surges between 1500-2500rpms while accelerating onto the freeway or going uphilll. I see that some have answered me only fb won't allow me to now see those answers.

185

Asked by Nov 14, 2012 at 08:43 AM about the 2002 Pontiac Grand Prix GT Coupe

Question type: Maintenance & Repair

Between 1500-2500rpms the engine lunges, below that or above that it runs great.  Also happens when I slow down then speed up at roundabouts, or when I go onto the freeway or go uphill.  This problem is getting old really fast.  I love this car & really don't have the income to get another car.

225600mi

4 Answers

best bet is to put a fuel additive in it, get the best one you can find. or run high test gasoline for a week or it might be the fuel pump, change out the fuel filter 1st. see you on the track, sir. or do everything all at once. Bingo!

32,315

Log jnto your facebook then type www.cargurus.com into your address bar. Once the site loads up look in the top right corner where it says, Welcome Robert, my account, log out, search. Click my account then click where it says question activity and it will give you access to all the questions your account has previously typed on. Whether its a question you asked or answered its all there. Mine is set up the same way and I have FB send me emails any time there is activity on here that has to do with my account.

1,105

Check the spark plug wires on the back of the engine. In some cases one of the wires come into contact with the upper stem of the oxygen sensor, the sensor getts hot enough to slowly burn through the best of wires which will cause an intermittent under load miss. I had to chase a similar problem on my 2000 GTP. A new set of wires and a plug wire protect-a-boot from DEI part # 010501 solved the problem. Hope this helps.

2 out of 2 people think this is helpful.
10

My 97monte carlo is doing the same thing i had change the egr valve the check engin lite not on but still jerks when i accelerate to 70 mph..please help with this

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 3,749 nationwide Grand Prix listings starting at $879.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 3,980
#2 Tom Demyan
Tom Demyan
Reputation 2,660
#3 munron
munron
Reputation 2,070
View All

Related Models For Sale

Used Chevrolet Impala
799 Great Deals out of 34,708 listings starting at $799
Used Pontiac Bonneville
6 Great Deals out of 674 listings starting at $1,599
Used Chevrolet Monte Carlo
12 Great Deals out of 1,692 listings starting at $2,300
Used Pontiac Grand Am
1,665 listings starting at $1,995
Used Chevrolet Malibu
1,081 Great Deals out of 85,119 listings starting at $1,995
Used Ford Mustang
399 Great Deals out of 44,403 listings starting at $1,000
Used Jeep Grand Cherokee
890 Great Deals out of 69,215 listings starting at $1,300
Used Chevrolet Camaro
309 Great Deals out of 38,867 listings starting at $1,250
Used Nissan Maxima
359 Great Deals out of 25,313 listings starting at $1,400
Used Honda Accord
888 Great Deals out of 82,090 listings starting at $999

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
14 Great Deals out of 472 listings starting at $1,200
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 536 listings starting at $2,000
2006 Pontiac Grand Prix For Sale
8 Great Deals out of 633 listings starting at $1,999
2005 Pontiac Grand Prix For Sale
438 listings starting at $5,900