Re: The famous Neon rough idle question...
[Re: DaveRS23]
#1632690
06/17/14 11:31 AM
06/17/14 11:31 AM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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My question is, did you reset the computer after you fixed the vacuum leak?
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: The famous Neon rough idle question...
[Re: demon440]
#1632692
06/21/14 05:22 AM
06/21/14 05:22 AM
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Joined: Mar 2005
Posts: 1,630 North Central Florida
eightlitermopar
OP
top fuel
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OP
top fuel
Joined: Mar 2005
Posts: 1,630
North Central Florida
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Quick update. I have done nothing but drive the car Seriously though, I didn't know if the car was relearning or not after being in the shop. I put some Lucas injector cleaner in and have been driving it. Idle still hovers about 600-800 RPM, starts right up and drives fine. I guess I can't complain though. I have seen some 4 cylinder cars shake so bad at idle you would think it had an uneven washing machine running under the hood. I do want to do a compression test though just for kicks. I will post the results as soon as I get them. eightlitermopar
Mopar or no car
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Re: The famous Neon rough idle question...
[Re: demon440]
#1632694
06/22/14 12:26 AM
06/22/14 12:26 AM
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Joined: Aug 2011
Posts: 1,083 SE PA
Yellow Fever
super stock
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super stock
Joined: Aug 2011
Posts: 1,083
SE PA
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Quote:
I have an 04 Neon with 95,000. miles I am the original owner. This car had a rough idle since day 1. Dealer told me it's normal. Recently it has a bad stumble, almost like it cuts out. In the past I have put 2 MSD coils on it and changed plugs and wires. Recently replaced the solenoid on the fire wall for emissions but that didn't help.
Do the timing belt, water pump and tensioner if you haven't yet! It will bend valves if it breaks!!
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Re: The famous Neon rough idle question...
[Re: eightlitermopar]
#1632698
07/08/14 03:24 PM
07/08/14 03:24 PM
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Joined: Mar 2005
Posts: 1,630 North Central Florida
eightlitermopar
OP
top fuel
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OP
top fuel
Joined: Mar 2005
Posts: 1,630
North Central Florida
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So, here is my latest update.
The car was running very rough at idle and seems to be getting worse. When the car is in “drive” at idle, it started developing a loud “chirping” sound that gradually got louder.
I took it back to the shop that did the timing belt, water pump, and replaced 2 motor mounts.
Long story short: The new motor mount/strut on the passenger side of the motor was adjusted properly (front to back), but the adjustment (side to side) was a little close to the motor. It was just enough that the idle would cause it to make contact and really vibrate the car.
After a readjustment, it idles A LOT smoother. However, there still is a bit of a shake at idle, but nothing close to what it was. They claim that if I replaced all of the mounts, it would smooth out like a new neon.
Based on what I experienced just with just one properly adjusted mount/strut, I totally believe it.
Mopar or no car
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