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GM garage said it was the crank sensor but it was not after driving for 15 minutes car starts jerking loses some power and traction control light comes on no ABS light

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  • Cars & Trucks Master
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I need you to have it scanned for fault codes, without the fault codes diagnosis is totally guess work on your dime.

Posted on Dec 30, 2016


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Posted on Jan 02, 2017

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SOURCE: 2001 olds ABS and traction control sensor issue

An ABS sensor DOES affect the traction control system. Traction control uses these sensors to determine if a wheel is losing traction. A bad sensor will cause both the ABS and TRACTION lights to come on.
The CHECK ENGINE light however is going to be a seperate problem.

Posted on Jun 09, 2008

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SOURCE: 2001 Mercury Grand Marquis brake and ABS dash lights on and off

The red brake light is the key here. That usually indicateds a hydraulic problem. Check you fluid level in master cylinder and see if it is low. Also the level indicator sensor there in the master cylinder maybe sticking or corrioded. If ABS sees the red brake light it will shut off and turn on the ABS light,also traction control would be disabled as well.

Posted on Feb 05, 2009

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SOURCE: traction control light comes on while driving in good weather

My 2002 Millenia just started doing this the other day, while on the freeway when it started doing it i would shut engine off and restart it and it would be good for a while then it would do it again, i am still looking for solution, has any one found one?

Posted on Jul 11, 2009

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SOURCE: I had the ABS light

Hi,the traction control light coming up means there is a fault detected in the system and a scan tool will be required to learn what fault has been detected. Possible steering angle sensor, wheel speed sensor or brake pressure sensor since the light comes up when making turns or when backing up. Faults are to be checked and proper diagnostic procedures carried out before parts replacement remedies.....

Posted on Oct 24, 2010

  • 1050 Answers

SOURCE: Car travels up to 3 miles ABS working, traction

You have a broken wiring harness to one of the front wheel sensors. This is a very common problem. You'll have to have the abs codes read to know which side, and then you can either repair or replace that piece. As the front wheels swing back and forth as you steer, the wires leading out of the fender well to the wheel hub fatigue and break inside the insulation, making it almost impossible to see from the outside where the break is. If you have an ohmmeter and are handy with tools, you can check each front harness for contnuity while wiggling it. This is a little tricky, but it will work if you can't find a way to read the codes.

Posted on Dec 24, 2010

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06 Monte Carlo 3.5L jerking and traction control service light comes on but not the ABS light. took it to the garage they said it was the crank sensor drove it home and it's still doing it.

try having the fault codes read first to see what sensors are failing
could be a loose wire or connection or corroded connection pins but any shop that guesses the problem without reading the codes first is guessing at the fault and fixing by guessing is not the way to go.

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My engine speed reduced light came on along with traction turned off on my 2009 Pontiac g6. when i accelerate it jerks.

Reduced engine power on GM vehicles has to do with the electronic throttle control .( Electronics ) Your best bet is to take your vehicle to a qualified repair shop or a GM dealer ! GM Reduced Engine Power Mystery Solved 04 Silverado REDUCED ENGINE POWER Case Study Part 1

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What it looks like: The traction control warning light typically takes the form of the acronym "TC." Sometimes this light is a small illuminated picture of a car losing control What it looks like: The traction control warning light typically takes the form of the acronym "TC." Sometimes this light is a small illuminated picture of a car losing control. How this system works: Traction control uses wheel speed sensors to detect when one or more of the car's wheels lose grip and traction. When the system registers a loss of traction in one or more of the wheels, a computer will limit power to the wheels that are still in solid contact with the road to prevent a skid. Common reasons for this to happen:
  • ABS is malfunctioning: Traction control and ABS (anti-lock braking system) often share the same control module and internal self-diagnostics system. As a result, sometimes an issue in the ABS can trigger the traction control light. If this is the case, then both the ABS and Traction Control lights will be on.
  • Broken wheel speed sensors: Wheel speed sensors are usually in the wheel bearing assembly, and determine the rate at which each wheel is moving. The sensors relay that information to the traction control module, which determines whether or not power needs to be shifted. Wheel speed sensors can get dirty or damaged and stop working, which prohibits the traction control module from knowing when to enable the system.Traction control module is faulty: The traction control module - which, again, is often shared with the ABS - can malfunction and break altogether, causing the system to stop working. What to expect: A top-rated mobile mechanic will come to your home or office to determine the source and cause of the traction control issue, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs. How important is this service? It's important to have the traction control issue investigated as soon as possible, as adverse driving conditions can arise at any time. While your car is unlikely to incur further damage from a faulty traction control system, it won't be safe to drive in rain, snow, sleet, or other inclement weather, or even possibly through pools of water on the road. Furthermore, the issue that is causing the traction control light to illuminate could also be impacting the ABS.

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Thinhking its the ecm

The ecm does not control the dashboard lights. I would start by checking battery, alternator and starter connections. Also, Gm uses aluminum wire and to check for white corrosion on ends of heavy gage cable.

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The traction control light comes on and then the engine loses power, just after I start it. What can I do about it.

These trucks are known to have problems with the front wheel speed sensors that control your 'traction control'. The traction control is actually applying your brakes. Thats why when you turn it off, You can move with no problems. The only way to really know this for sure is to take it to a repair shop and have them diagnose the problem. You can always just replace the front wheel bearing assemblies (they have the wheel speed sensors built in), but that can get pricey.

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