We got a new car in July of 2005. Army moved us to Germany. We have had no problems with the car. We love it. But just reciently we have been having issues when we are stopped at a light, sign or the gate for an ID check the car's idol slowly drops and starts to chug. We have gotten a diognostic test at our military car care center and they told us it's misfireing and we need new spark plugs and wires. We had just reciently gotten new plug wires due to marters (a.k.a. rats chewing the origional ones. So we got new spark plugs and had them installed. The check engine light went off and was alright but is now chugging again at every stop. I nees help please! Anyone! This military could really use any advice!
I think you might have a mouse living in your engine compartment
but i would look at a mouse dead inside your muffler since this is the warmest place the cuts off the cars way of breathing
when you come to a stop the dead mouse moves inside muffler and creates a blockage just enough to almost smother vehicle rats find muffler pipes warm area to live in
i would also change the oxygen sensor out too
since you mentioned rats i would gothrew whole vehicle in detail and look for chewed frayed wires windshield wiper motors things of this nature they may have chewed threw a relay and you wouldnt know once you have rats they can do lots of damage to a vehicle
also if vehicle sat for long time i would check the tank for debry and change the sending units filter out for better performance along with vehicles fuel filters
fuel injector relay can also be bad giving you the chug
bad coil
build of gunk in the throttle body houseing
air filter clog or not enough air
these are things i can think off the top of my head since im not there in person to see vehicle
i hope this had helped you in some remedy
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i have the same problem with my 05 sxt. i've even stalled it twice in reverse trying to back out of parallell parking...sad ting is i've only owned mine for a mth and a half
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