service engine soon and trac light come on embed go off at random

Asked by Jul 08, 2012 at 04:43 AM about the 1999 Pontiac Grand Am 4 Dr SE Sedan

Question type: Maintenance & Repair

I've got a 99Pontiac grand am the trac light and service engine soon light come on and will go off and on and of
randomly. When they come on the car idles really rough, the car vibrates and shakes, three car when stopped
sometimes refuses to speed up and move, I've replaced the ignition coil the spark plugs and the wires the fuel find
the lights still come on and off. Since the fuel filter change its been driving much better and three idler is no where
near as bad, barley now but the lights still come on. On the car MD the code 304 comes up for a misfire on the 4th
cylinder just as randomly. It shows when the lights see on, and after a few passes on the MD the lights clear snag
the car drives like a dream, need advice

4 Answers

210,425

The Trac light means the ABS system is disabled, so this is usually caused by a faulty wheel sensor, have it check by a local mechanic. A code P0304 may mean that you have a clogged injector on that cylinder or when you replaced the parts the plug wire isn't seated properly on the coil or plug, did you use dielectric grease on the boots of the wires?

3 out of 3 people think this is helpful.
Best Answer

Im not sure if they did, or not.

1,175

The service engine and Trac are on the same circuit to make you think it needs asap service at the dealer p0304 is cylinder misfire detected low fuel pressure, can produce this code, oh foot note p0304 is a random misfire affecting all cyls randomly. If it gets worse warm look at sensors, fuel pump is a very good place to start.

2 out of 2 people think this is helpful.

I have a 2004 Pontiac Grand Am same problem abs service engine soon light come on and it comes off And Trac off light

Your Answer

Add photo

Related Questions

  • Why is my Pontiac Grand Am 2003 shutting off randomly while I drive/idle? 3 answers

    Hi, I own a 2003 Pontiac Grand Am SE1 (2.2L engine). I've been having a lot of trouble with my car shutting off at random times. Sometimes when I start my car and then put it in R to pull out of a...

    2003 Pontiac Grand Am SE1

    -

    Maintenance & Repair

  • Why does my gas pedal stop working at random times? 8 answers

    So today I was on my way back from work and when I was about 15 minutes into my drive, my gas pedal stopped working, I was flooring it and I was just going 50 and there was no power sound that you wou...

    1999 Pontiac Grand Am 4 Dr SE Sedan

    -

    Maintenance & Repair

  • interior dash lights dont work not the fuses 2 answers

    i have a 2001 grand am se when my tail lights and dash lights went out i knew it was the fuse i replaced the fuse and it fixed the tailights but the dash lights still dont work the service engine li...

    2001 Pontiac Grand Am

    -

    Maintenance & Repair

  • Random Misfire Error Code & Catalytic Converter Gets Hot 3 answers

    The Problem The current problem with the car is that it is not accelerating fast, for example i would push the petal to the metal and only go 25 mph and my RPM would be 4000. Initial my brother and...

    2000 Pontiac Grand Am SE

    -

    Maintenance & Repair

  • 01 sunfire service, check engine, oil and abs light coming on and off. 8 answers

    My 01 sunfires service, check engine, oil and and sensors keep coming on and going jack off. The come on and go off while driving. No particular actions causing the change. Any idea why they are a...

    2001 Pontiac Sunfire SE

    -

    Maintenance & Repair

Grand Am

Looking for a Used Grand Am in your area?

CarGurus has 1,723 nationwide Grand Am listings starting at $1,995.

ZIP:

Search Pontiac Grand Am Questions

Pontiac Grand Am Experts

#1 tenspeed
tenspeed
Reputation 7,170
#2 John Saffrahn
John Saffrahn
Reputation 1,480
#3 Tom Demyan
Tom Demyan
Reputation 1,270
View All

Related Models For Sale

Used Pontiac Grand Prix
20 Great Deals out of 3,756 listings starting at $1,995
Used Pontiac Firebird
11 Great Deals out of 816 listings starting at $3,800
Used Chevrolet Impala
944 Great Deals out of 36,281 listings starting at $1,800
Used Ford Mustang
697 Great Deals out of 38,429 listings starting at $1,963
Used Chevrolet Monte Carlo
18 Great Deals out of 1,723 listings starting at $1,695
Used Chevrolet Malibu
1,103 Great Deals out of 79,338 listings starting at $2,495
Used Chevrolet Camaro
647 Great Deals out of 39,349 listings starting at $2,995
Used Honda Accord
1,207 Great Deals out of 77,538 listings starting at $969
Used Chevrolet Cavalier
1,349 listings starting at $1,995
Used Pontiac Bonneville
669 listings starting at $2,298
Used Jeep Grand Cherokee
1,140 Great Deals out of 69,562 listings starting at $495
Used Ford Taurus
358 Great Deals out of 22,339 listings starting at $1,499
Used Ford Focus
1,249 Great Deals out of 59,155 listings starting at $1,395

Used Cars For Sale

2004 Pontiac Grand Am For Sale
446 listings starting at $2,699