Question about 2000 Jeep Grand Cherokee

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I have 2 codes on mine 00 jeep grand cherokee P1715 Manual Valve T3 and PL120 Throottle Position

It shift hard n when i go to stop it wontes to lunch foward

Posted by Anonymous on

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

MrScary66613
  • 1990 Answers

SOURCE: 97 Jeep grand cherokee with stiff steering at 9:00 and 3:00...

Check and see if the Power Steering Pump is Low on Fluid. If not Low, you could have a Leak in the Pump or Lines and will need to be Replaced. Also Make sure that the Belt is good and Tight. Please Rate My Response! Thanks!

Posted on Feb 04, 2009

  • 2 Answers

SOURCE: 94 jeep grand cherokee will not shift into overdrive

My 97 Jeep Grand Cherokee was doing the same thing. I changed the TPS ( Throttle Position Sensor) Now it is great goes into overdrive fine. It is really easy to change.

Posted on Feb 11, 2009

  • 6982 Answers

SOURCE: 2000 jeep grand cherokee limited starts in 3rd gear

oil pressure problem should be checked independently of other problems...Use a good accurate mechanical gauge to check. If pressure is good (no less than 15psi at idle hot (I prefer to see at least 20) check dash grounding, block ground and if OK, change sending unit. Dash and body ground can influence operation of shift and body control modules so indirectly your problem may or may not be related, depending upon what you find while testing. And it could turn out to be a defective module! They are expensive and just plugging new ones in may work, but then again, it might not. I might be totally incorrect on this...that's the value of actually being there instead of doing this by "remote control".
If you read the numerous posts pertaining to all vehicles, you will see that you are not alone with electrical problems...As long as the engineers who design this stuff, keep using "modules" to replace ordinary simple and reliable systems, we will continue to have these problems. Do some testing and I'm sure you will find a solution! (I'm still waiting for someone to make a program for a PC that will give a complete readout of every system in a vehicle, including exact faults instead of general system "suggestions")
Good luck

Posted on Apr 07, 2009

  • 3 Answers

SOURCE: 4.0 engine swap limititations

Hi, The earlier engines had a distribitor for the spark plugs, but later engines for the 1999-2004 cars, have a coil on top of each spark plug controlled by th PCM (or ECU). It may be possible to modify an older engine by using all the ignition gear from your later unit, but I haven't tried. Maybe ask at a Jeep used parts supplier, who may have done a similar job.

Posted on May 19, 2009

Molson02536
  • 3854 Answers

SOURCE: IAC Valve Location - 1996 Jeep Grand Cherokee

The idle air control valve is located on the back of the throttle body. It has an oval electrical connector and two torx screws holding it in. Unplug the connector, remove the two screws then lightly tap the body with a soft faced mallet to loosen it from the body. 
Once you have it out and prior to installing a new valve clean the seat inside the throttle body where the idle control fits. This must be very clean! Installation is in the reverse order. 
 To save some cash, pull the valve out and clean it with throttle body cleaner, this usually fixes the problem for quite a while.
Good luck and hope this helps.

Posted on May 28, 2009

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