Question about 2004 Chrysler Pacifica

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I have a 2004 Chrysler Pacifica that hestates upon take off if it reaches 3000 RPMs. I have to slowly drive till I get enough speed without reach 3,000 RPM so that it won't thump multiple times. M

I have a 2004 Chrysler Pacifica that hestates upon take off if it reaches 3000 RPMs. I have to slowly drive till I get enough speed without reaching 3,000 RPM so that it won't thump multiple times. My tire pressure & engine light light are on as well as service tire system messgae. My mechanic can not figure it out & he's had the car now for two months. Has anyone had same/similar issues?

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  • Jackie Jordan Nov 19, 2012

    Within that period of time, he has changed spark plugs, 2 coil packs and one fuel injector. Problem still persist. I believe it may have something to do with the Traction Control system

  • Jackie Jordan Nov 19, 2012

    Mechanic also stated catalytic converter was also clogged, which has also been rectified. I brought this car in with one problem, the fan was working therefore the car overheated in a stationary position. The mechanic found the wire within the wire harness & change just that wire. While driving the car home from the shop this problem started.

  • Jackie Jordan Nov 19, 2012

    Mechanic also stated catalytic converter was also clogged, which has also been rectified. I brought this car in with one problem, the fan was working therefore the car overheated in a stationary position. The mechanic found the wire within the wire harness & change just that wire. While driving the car home from the shop this problem started.

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Personal experience says you have a wiring harness that is grounding out and causing the codes...This is especially true if you have had the typical motor mount issues that are common on the Pacifica...Check the wiring harness behind the drivers side wheel...


Remove the front left wheel (drivers side)
-Remove the wheel well shield (just the front is all that is necessary...fold it back)


-Verify the vehicle ground is still intact (when the motor mount gives there is not enough slack in the ground wire and the wire will pull out of the grounding lug)


-Inspect the wiring harness that is around the transmission that goes to the PCM (when the motor mounts give they can crush and then rest on the harness and wear through the casing and then affect the individual wires...throwing codes...)

Posted on Nov 14, 2012

  • Jackie Jordan Nov 19, 2012

    Interesting you mention that because this wasn't an existing problem till my fan stopped working & this same mechanic fixed it by replacing just the one wire within the harness. Sure enough I pick up the car & on my way home this problem started

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Posted on Jan 02, 2017

motor1258
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SOURCE: 2004 Chrysler Pacifica - Constant engine winding / whirring sound

If it sounds more like it's coming from rear of engine, that could be a possibility, and should be followed up,but if it's coming from front of vehicle area, I'd concentrate on your accessory drive belt . If it hasn't been changed in quite a while especially. That belt is routed around about 8 different pulleys,in,out,over,under, and it would lead me to believe it would be a good candidate for wear & noise that would increase as it wears more. I wouldn't try belt dressing as I'm not a lover of that stuff, only for emergencies. It may be as simple as spraying water on it to see if the noise changes or disappears, just keep your eyes back if engines running. They make what they call an audioscope, basically a set of headphones wired to an amplified probe, so it's easier to isolate the noise, perhaps a local garage has one, and can pinpoint it for you. Years back mechanics would use a long screwdriver or pipe up to their ear and poke around, but that's very dangerous, so I wouldn't recommend that. Your engine does have a timing belt too, and engines in the past have been known to produce that sound you describe from wear on it too. I'd go after that one as a last resort unless manual recommends it at certain interval.

Posted on Feb 02, 2009

  • 323 Answers

SOURCE: Check Engine Light

If the light isn't flashing, it is safe to drive. If it is flashing, then catalytic converter damage can result. Have a parts store check the codes for you and come back and post the code.

Posted on May 01, 2009

  • 323 Answers

SOURCE: 2004 chrysler pacifica

It is for an oil change mainly and any other service your maintenance manual suggests at the mileage interval. It needs to be reset after each oil change to be accurate.

Posted on Jun 05, 2009

  • 4088 Answers

SOURCE: I have a service tire system soon alert on my 2004

This is likely a mileage triggered warning. If you have good tires already, a rented scanner will allow you to reset the mileage goal and clear the message. Alternatively, go back to where you bought the tires and see if they will erase the warning.

Posted on Sep 14, 2009

  • 15 Answers

SOURCE: 2004 chrysler pacifica service tire system light

Make sure that your tire pressure sensors were not damaged. one simple way to check what tire sensor is causing the problem is to lower each tire individually and check to see if the message displays to a different tire or more than 1, depending on the TPM system your pacifica has. Chrysler has a TPM (tire pressure monitor) tester which can check each individual sensor for correct operation. and the sensor's batteries have typically a 5-7 year life span.

Posted on Feb 19, 2011

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