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CAR IDLES rough //No CEL Topic is solved

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natural4reelz
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CAR IDLES rough //No CEL

Post by natural4reelz » Sun Mar 03, 2019 6:28 pm

My car has a rough idle and u feel it in the foot pedla and it is when im at a stop light in drive and almost like it occastionally feels as if it has a hiccup every so offten.. NO CEL

ITS ALMOST AS IT its jumpy and the idle alway remains the same around 800

Did the spark plugs awhile back to..

But its Almost as if it’s miss firing but wouldn’t my car throw a code if I was getting misfires



chris11211
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Re: CAR IDLES rough //No CEL

Post by chris11211 » Sun Mar 03, 2019 9:21 pm

You might have to dig in and clean the throttle body; no need to remove it, just unscrew the air intake pipes to get to it. If not, then see if the engine mounts are dried up and loosing their rubber.



natural4reelz
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natural4reelz

Re: CAR IDLES rough //No CEL

Post by natural4reelz » Mon Mar 04, 2019 1:24 pm

The top mount
Is bustedm

The idle always stays the same and i feel vibration and sometimes a little jolt or HICCUP on the GAS PEDAL A

It almost feels like its misfiring
And it is using alot of gas



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abscate
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abscate

Re: CAR IDLES rough //No CEL  Topic is solved

Post by abscate » Mon Mar 04, 2019 3:38 pm

If you have an erratic misfire it won't throw a code, and even if it does, you can trust the cylinder code about 1/2 the time.


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Re: CAR IDLES rough //No CEL

Post by chrism » Mon Mar 04, 2019 4:13 pm

What kind of spark plugs did you install?



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Re: CAR IDLES rough //No CEL

Post by June » Mon Mar 04, 2019 9:11 pm

If the top mount Is damaged, then likely the lower mounts are bad too. Busted engine mounts will cause engine vibration like you described. The question is whether the hiccups is the engine moving around or something else like the ac compressor kicking on and off. If the engine was to misfire it would throw a code. Also these cars are fussy about aftermarket spark plugs. June


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Re: CAR IDLES rough //No CEL

Post by natural4reelz » Tue Mar 05, 2019 1:42 am

Volvo spark plugs got them from FCPEURO



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