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Pontiac Grand Am Service Engine Soon / ABS / Trac Off

101 messages,  Last post on Oct 15, 2009 at 5:46 AM

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What is this discussion about? Pontiac Grand Am, Sedan


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#86 of 101
Re: 95 grand basket [gmccabe] by tobijs87
May 03, 2009 (12:58 pm)
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Replying to: gmccabe (Apr 29, 2009 7:12 pm)

this is a really common problem with early grand ams (before 99) and with cavaliers, sunfires, etc. it isnt a matter of just bleeding the brakes, the reason your light is on and your back brakes lock up is because your abs motor pack has gone bad, these are not incredibly cheap, usually about 200 for the part and then the shop bill if you cant do it yourself, I had this same exact problem with my girlfriends 97 cavalier. Good Luck!
#87 of 101
SERVICE VEHICLE SOON, TRAC OFF, ABS by tobijs87
May 03, 2009 (1:06 pm)
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To all of you with these lights on, this is because of your wheel speed sensor wiring, the only thing about that though is that you cant just replace the wires, the wires are sealed in the hub assembly, so you have to replace the entire hub assembly. This is a major issue with grand ams, if you keep your car for a while you WILL have this problem again. I have had a 2001 grand am for 4 years now it now has 165,000 on it and i have had to replace the hub assemblies twice and need to again! These hubs usually last about 60,000 to 90,000 miles, depending on whther you buy the cheapos and how you drive your car.
#89 of 101
Trac off light and service engine soon by wilford1978
Jul 16, 2009 (4:23 pm)
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My TRAC OFF light has come on and when it does I get hard shifts. It has come on a few times now and if I turn the car off and on again it goes away. Today though the service engine soon light came on with it. I have noticed a lot of you have had this problem. I am hoping someone can tell me what the problem is and the what they had done to fix it. Thanks in advance for your help!
#90 of 101
Engine doesn't run slow by pgpk2000
Jul 26, 2009 (6:42 am)
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Hi I am new to this site and I have a Grand Am 99. If any body can tell me why the Engine not runing in slow runing? It is very hard when it comes to traffic, I have to keep my both foots in breaks and the accselartor so that I can keep the engine in a high runing mode. I am out of U.S living in Qatar, and there aren't lots of cars like this in this part of the world so help me.
#91 of 101
Re: Trac off light and service engine soon [wilford1978] by azamor2
Jul 29, 2009 (2:11 pm)
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Replying to: wilford1978 (Jul 16, 2009 4:23 pm)

Have you found a solution to your problem? I am having the exact same problem but my Engine light has not yet come on. Like yours, it is an intermittent issue and it shifts hard, most noticeably from 1st to 2nd gear. If you have found a solution, would you mind emailing? Thank you. Alex.
#92 of 101
Re: SERVICE VEHICLE SOON, TRAC OFF, ABS [tobijs87] by 03grandampos
Aug 18, 2009 (6:50 am)
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Replying to: tobijs87 (May 03, 2009 1:06 pm)

im having this problem for the third time. Im brining my car into Lannan Chevrolet in woburn, MA today. I will post the diagnostic later today.
#93 of 101
Trac off Abs Service Vehicle Soon by tbender
Aug 20, 2009 (7:23 am)
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I have taken my 04 Grandam to the dealership because all these lights come on every now and then. There is no consistency in when the come on. I go for a long time and then one day the pop on and are a problem for a day or two. Then we are right back where we started. They say the problem is in the right wheel but they cannont distinguish if it in the HUB or the Harness. They say it is ok to drive until the light stays on consitently so they can tell which one it is. Has anyone else had this problem?
#94 of 101
Service Engine, ABS, Service Vehicle, Trac Off Lights by frustratedinwi
Sep 09, 2009 (1:58 pm)
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I have a 2000 Grand Am SE 2.4 with 152,000 miles
I have loved this car, taken great care of it and had it since 63,000 miles with no major issues.
Last week my "Service Engine" light came on. The next day my Fuel Pump went out. I had to have my car towed to the shop where they took off my fuel tank and replaced my fuel pump and filter.
When I got back into the car the "Trac Off" light was on along with the Service Engine light. It was diagnosed that the vacum hose had a leak in the EGR system and that there we re misfires (probably from trying to start the car after the pump went out).
Anyways he mechanic put these lights out and now today, 5 days later, all lights are back on. The Service Engine was first with no noticeable problems when driving then this morning I turned on my car and ABS, Service Vehicle, and Trac Off Lights were all on.
Does anyone have any ideas why this is happening? Could it be from towing or a wire coming loose from the repair??!? please help
#95 of 101
Re: Service Engine, ABS, Service Vehicle, Trac Off Lights [frustratedinwi] by jimsmith2354
Sep 09, 2009 (4:39 pm)
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Replying to: frustratedinwi (Sep 09, 2009 1:58 pm)

I'm an electronics engineer with lots of automotive experience and the connections are usually pretty reliable, but it would be pretty easy for a mechanic to check for broken or pulled wires. (my car is a 2003 Grand AM GT) The wheel speed sensors for Grand Am's are poorly sealed from water. At less than 60K both of my front wheel sensors failed, and now at 64,000 miles, the rears are going bad and causing the same ABS and Trac Off lights to come on. Mine are failing with a bad internal connection, so the lights come and go. A $300 ABS code reader is needed to diagnose brake problems. It is important to get fixed as your ABS will not work while these sensors are bad.

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