Q: Issues with idle after changing plugs, map sensor, iac valve on 2006 Chrysler Pacifica.

asked by on May 09, 2017

After changing the plugs idle began to rise and drop erratically. I then changed the map sensor and throttle position sensor. Now the idle is high and engine is running hot and stutters when coming to a stop. I'm about to change the iac valve. Any ideas to find the source will greatly be appreciated.

My car has 180000 miles.
My car has an automatic transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I control the air flow?
Your vehicle has six different air flow options: Max A/C (air is blown from the center and side ventilators at the coldest setting, Upper Air (air flows at torso level), Upper and Lower Air (air flows at both torso and...
First gear shifting issues - 1999 Isuzu Amigo
Hello. If your vehicle is experiencing shifting issues and has not had the transmission serviced after nearly 100k miles, it may very well be time for a service. Automatic transmissions operate using the fluid pressure to shift automatically. If the...
Automatic transmission problem
Hi, thanks for writing in. This is likely related to the transmission control module which directs the transmission to shift up and down at specific points relative to engine RPMs. If you would like, consider having an expert automotive technician...
Can I reset the computer and if so how?
Hi. The radiator shouldn't make the Check Engine Light come on if it is bad. Your Check Engine Light is on because there is a sensor in your engine sending a bad message to the PCM. To solve this problem,...
What is making my front end vibrate?
I would first test the motor or transmission mounts. If it is not the motor mounts, the vibration might be arising as engine load and speed "interact" with the gearing at that particular speed causing a dynamic balance issue. The...
I have been hearing a vibration in the back when accelerating it's almost like a clicking sound.
Hi there. The clicking sound/vibration in the rear of the vehicle upon acceleration could be, several possibilities. A loose wheel (https://www.yourmechanic.com/services/tighten-wheel-lug-nuts), a bad wheel bearing (https://www.yourmechanic.com/services/wheel-bearings-replacement), a loose or broken suspension component (https://www.yourmechanic.com/services/brakes-steering-and-suspension-inspection). These are likely culprits but there are...
Check engine light appears and disappears
Sometimes when a check engine light comes on it will set a code in the computer and if after a set time limit the problem does not repeat the computer can turn off the light and go back to normal...
My blower motor won't turn on when it's extremely cold 2003 Chevy Trailblazer
Hi there - electrical failures when cold (https://www.yourmechanic.com/question/car-horn-going-off-in-the-middle-of-the-night) are tough problems, because the source is an electrical connection - switch contact, brushes in the motor itself, potentially a blower motor relay - that shrinks and loses connectivity when cold. It...
how do I best get to the lower radiator hose on 2007 Charger?
Hi there. I'd recommend two things; first, review this article on how to replace a radiator hose (https://www.yourmechanic.com/article/how-to-replace-a-radiator-hose-by-mia-bevacqua) and second, watch this video (https://www.youtube.com/watch?v=WR37BA9D2Do) to see how a professional mechanic completes this process. There is a lower skirt that covers...

Related articles

A Buyer’s Guide to the 2012 Dodge Ram
While While Chrysler has decided to give Ram its very own division, it seems impossible not to think of the Ram 1500 as a Dodge. After all, you’ll still buy your 2012 Ram at a Dodge dealer, and it remains...
The Best Used Cars to Buy If You’re a Massage Therapist
If If you're a massage therapist, one of the cornerstones of your business has to be that you don’t keep your clients waiting. That means you need a vehicle that’s reliable. You also will have to move your gear, including...
How to Get Chrysler Dealership Certified
Chrysler car dealerships offer automotive technician jobs to mechanics who are certified through the MOPAR CAP (Career Automotive Program).