Thanks for the info


"Jason" <jason@nospam.com> wrote in message
news:jason-1404051341310001@pm4-broad-51.snlo.dialup.fix.net...
> In article <XSy7e.31021$vt1.15636@edtnps90>, "JEHU"
> <dcoxNOSPAM@hfx.eastlink.ca> wrote:
>
>> OK I have been having idle problems for a while now (2000 Civic SiR).
>> First it was idleing low, so the dealership replaced the IACV (idle air
>> control valve). Problem wasn't fixed. Next I cleaned the black carbon
>> buildup in the throttle body with some throttle body cleaner. My idle
>> was
>> just about perfect and I noticed that the throttle (gas peddle) felt like
>> it
>> was sticking at the very top, so I had the dealership look. They cleaned
>> the throttle body again and said that the throttle body was pitted.
>> After
>> this cleaning it seemed to idle higher then normal when worm (between
>> 1000
>> and 1200rpm) and after driving it for about 3 hours with lots of start
>> and
>> stops, the engine light comes on and the tach is stuck at 1500rpm. When
>> I
>> go to step on the gas and let out the clutch the car seems to hesitate
>> ALOT.
>> When the car is truned off then truned back on the idle jumps from
>> 1200rpm
>> to 1500rpm a few times then settles at 1200rpm.... after driving (start
>> and
>> stops) a while it returns to 1500 and hesitation.
>>
>> My question is, Is this anouther faulty IACV? Would them "cleaning" it
>> have done something to it?
>>
>> thanks for any advice
>>
>> dave
>
> dave,
> I will only try to provide some advice as to the cause of most idling
> problems:
> 1. vacuum leaking
> 2. spark plugs not gapped properly or worn
> 3. bad spark plug wires
> 4. incorrect ignition timing
> 5. defective EGR valve
> 6. air filter clogged.
> 7. defective fuel pump or fuel filter needs to be changed.
> 8. fuel pulsation damper faulty
> 9. leaking head gasket
> I should note that I copied the above list from my repair book--the above
> items were on the list of causes of idling problems.
>
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