Question about Jeep Grand Cherokee

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1. When I brake to stop, say at a stop light/sign, just as I come to a complete stop, the entire car jerks forward a bit even with my foot on the brake. This happens EVERY time I stop. The jerking/lurching action can even occur when I have been at a complete stop. 2. After coming out of a stop, or even putting my foot on the pedal after slowing down, it has a hard time grabbing the gear and getting out of first and the engine strain is very audible. Once it shifts out of first, I have no problems.

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  • 3 Answers

Sounds like an automatic transmission problem, specific the clutch. Either a rebuild or a new one. Check the fluid level and smell it to see if there is a strong odor. The collar should be cherry red. If it's brown, it's cooked.


Robert

Posted on May 21, 2017

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Posted on Jan 02, 2017

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SOURCE: transmission/shifting 2001 Sante Fe - Hyundai

Sounds like you might have serious internal transmission problems.

As soon as you can, get someone with a code reader to plug in the vehicle and find out what the code is for the Check Engine light to come on. Might give you a better picture of what`s going on.

It could also (cross your fingers) be something more usual like a clogged transmission filter (located inside the pan), or shift solenoid.

By the way, have you checked the level, look & smell of your transmission fluid?

Level should be checked with the vehicle running, after passing it in all gear ranges on the shifter, and putting it back in park (Check it on "cold" or "hot" level depending on if it`s been driving for a while or not).

As for look and smell, it should be reddish and not smell burnt. Hard to describe the smell of burnt transmission fluid, but normal fluid does not smell too strongly, kind of sweet. Burnt oil is usually black and has a strong odor. If the oil is burnt you have internal damage to the transmission.

One piece of advice I give you is get it fixed as soon as possible because if you don`t already have serious internal transmission problems, the longer you wait, the more chances you have of getting some, to the point of the vehicle just refusing to move. And believe me, speaking from experience, the transition point from the symptoms you describe to total refusal to move and the need for a tow/transmission rebuild is not that long usually.

Posted on Aug 19, 2008

  • 5 Answers

SOURCE: car jerks forward while idling seems like it is

Does this last for a long period of time? or is it for a short time, feeling as if the car wants to kind of 'jump' forward? Does seem to occur when the A/C is in operation? During the normal operation of an A/C system, once the interior reaches the requested temperature, the system maintains this temp by alternately turning off/on/off/on the A/C compressor as needed to keep the interior at temperature. A/C compressors cause heavy load on the engine. The modern cars fuel injection systems compensate for this load by raising the idle speed when the compressor kicks in and lowering it back down when the compressor cycles off. This cycling is happening all the time, but can only be noticeable at idling, say in traffic or at a long stop light. Often, due to the time delay between when the Compressor turning off (load on engine being relieved) and the computer adjusting the idle seed down due to this load loss, the car can feel momentarily like it wants to surge forward. I have had many cars in recent years that do this. On small engines, it's even more noticeable. This is normal. I hope this answers your concern. Note; as a car ages, this process can take a microsecond or two longer to occur due to, like people, sometimes older electronic and mechanical components do not work as fast as they used to. I hope this helps you .

Posted on Aug 19, 2009

  • 1986 Answers

SOURCE: 2004 Audi A4 1.8 - jerks/jolts while accelerating from 0-20 mph

It sounds like there may be an issue with your ignition system.

Check the ignition wires, distributor cap, spark plugs.

Posted on Sep 09, 2009

  • 73 Answers

SOURCE: Car jerking forward lightly and check engine light on

You have to have the DTC pulled to see what made the light come on , ECU is a common problem on this vehicle,it is covered for 8 years/80,000 miles

Posted on Sep 23, 2009

  • 1608 Answers

SOURCE: hesitation or jerking when proceeding forward

Remove the mass air flow sensor and clean it.You can get mass air flow sensor cleaner at most part stores.The sensor is on the air cleaner tube that goes into the throttle body.Hope this helps.Good luck.

Posted on Feb 25, 2010

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