Question about 1993 Dodge Intrepid

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Engine idle fluctuates high and normal and the engine light comes on.

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Check IAC sensor

Posted on Sep 03, 2010

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2002 escape 3.0 idle fluctuates and misfires when driving


No such thing as a tune-up

All you did was replace spark plugs which should be
done every 3 years

Oxygen Sensors get replaced at 100,000 miles which you
also did

You most likely have an intake gasket leak,smoke test
the entire Evap System & Engine

You also are have bad igniton coils

Jan 18, 2013 | 2002 Ford Escape

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Hi.i have a 04 audi a4 1.8t quattro 91k on the clock.The idle speed is too high about 1.2 and fluctuates to normal and then sometimes revs to 2,5 and then settles back again after a couple of seconds.I...


You need to have OBII scan performed. The fluctuating idle sinus like a MAF sensor, Temp & fan are separate issues. Get scan done, that should identify exact issues.

Mar 16, 2011 | Audi A4 Cars & Trucks

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Should the oil pressure gauge fluctuate with speed


The oil pressure guage will fluctuate with engine RPM. At idle it should be approximately 20 lbs./sq.in, at high revs about 50-60 lbs./sq.in. Hope this helps any concerns you may have. Good luck!

Jun 05, 2010 | 2004 Chevrolet Express

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When Brake is applied the Idle tends to drop on my 1995 toyota pickup EFI 22R engine


this is absolutely normal with a well maintained broken in engine. the engine is at rest when stopped,so the ecm lowers idle till you drive,which puts the engine under load.if it causes the engine to stumble or die,then replace air filter and set up the idle.

Apr 29, 2010 | 1991 Toyota Pickup

1 Answer

Check engine light coming on off and on, seems to


The harmoic balancer is located on the end of the crankshaft. This shaft is the largest shft in the engine and should be the one where all belts eventually run thru/over it. Check it out, let me know.
1ledsled1@comcast.net

Jan 17, 2010 | 1987 Subaru Gl 4WD

1 Answer

I got a 1990 ford ranger 2.9 v6 its running very crappy


Fluctuating an high RPMs sounds like a leaking or missing vaccume hose to me, I had simmilar problem found open hole with hose off, replaced it now the RPMs are under 1000 again.
As for the stalling I also am having a simmilar problem, and am finding air in the fuel rail, I suspect the fuel pump is going.
I cant go more than a mile without problems.

Dec 03, 2009 | 1990 Ford Ranger SuperCab

1 Answer

Describe your 1997 Jeep Wrangler 1997 jeep wrangler 4 cyl idle fluctuates 900 rpm to 400 rpm after warmup no service engine light but check guages light comes on momentarily when rpm gets low and oil press...


The check gauges light is normal because at 400 rpm it isn't running fast enough to build sufficient oil pressure. I am guessing maybe a vaccum leak???

Jul 10, 2009 | 1997 Jeep Wrangler

1 Answer

High idle with a/c on.


Cars are SUPPOSE to idle higher when the A/C is on...(especially 134a systems)..the idle will go up and down as the compressor cycles on and off.

Sep 17, 2008 | 1999 Chevrolet Suburban

1 Answer

Honda Accord 1991 idles high then low


)The fact that thge engine idle fluctuates when it is cold indicates that the Fast Idle THermo Valve is out of adjustment.
This valve is located ot the front of the intake manifold on the driver's side just below the accelerator cable. To adjust it, wait until the engine is cold (best to do it first thing in the morning).
Remove the two screws holding the cover on and start the engine. There is a brass needle sticking up through a plastic ring that has two slots in it. With the engine idle fluctuating, use a thin flat blade screwdriver to SLOWLY turn the ring CLOCKWISE
until the idle stabilizes. Once done. put the cover back on withg the two screws and you should be done.

Jun 04, 2008 | 1991 Honda Accord

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