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88 f250 460 idle fluctuates. Sometimes runs rough. Check engine light comes on occasionally

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  • Cars & Trucks Master
  • 1,207 Answers

The easy way to know what problem causes the light come on, you can take a cheap OBD2 code reader to have a check.

Posted on Nov 27, 2012

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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jpetrovic06
  • 8 Answers

SOURCE: 88 Accord Check Engine Light

Hes INCORRECT. Theses cars arent "scan tool" accessable.
Check ingine light comes on... Is the car a Manual tans? Or an auto Trans?
If manual do u notice the Light comeing on When you let the car coast with the clutch engaude?

When u turn the car off does the check light go away untill u start driveing again?

Posted on Jul 01, 2008

mrgreenz
  • 962 Answers

SOURCE: My 1998 Olds 88 has been stalling and running rough.

Check and clean the IAC valve. Idle Control Valve. Use brake cleaner or carburater cleaner . Remove the duct work from the air filter assembly. It is located just inside . Run the engine at 1200 rpms and spray the valve. The valve can also be removed and cleaned.

Posted on Jan 07, 2009

  • 1 Answer

SOURCE: 2003 Silverado rough idle, idles good after "check engine" light

Check your o2 sensor voltage, those trucks are real bad for o2 sensors, and yes if one sensor is reading 0mv, the others will start to drop out, and the vehicle will run very, rough. You also may check fuel system pressure, should be almost 60p.s.i. If its alot lower, Id be looking into a fuel pump. If that vehicle is drive-by-wire (no throttle cable), the throttle bodies get very dirty and cause that concern also. Id start by having the vehicle scantested.

Posted on Feb 07, 2009

chuck943
  • 783 Answers

SOURCE: 2000 Ford Explorerer rough idle When cold

what codes are present? If it is lean codes P0171/P0174 problem is most likely the orings leaking between upper and lower intake manifold if this is a 4.0L

Posted on Feb 11, 2009

  • 2 Answers

SOURCE: Very Rough Idle and sometimes cuts off while idling




sounds like bad Idle Air control valve Not Cheap


wl2ac485003.jpg

Posted on Feb 21, 2009

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2 Answers

Idles roughly, then low when stopped or in park, then dies. Decreasing gas mileage. Slow to accelerate


Sometimes that's caused by a vacuum leak near the manifold area.

Sometimes air in the coolant will cause an idle problem. Air will keep the air temp sensor from sending proper info.
Hope this helps.

Jan 03, 2014 | 2004 Ford Taurus

1 Answer

2002 ford windstar rough idle


Sounds like you never diagnose any fault codes
& just continue to drive on

ABS,Brake light,Evap,now a failed transaxle

Sep 01, 2013 | Cars & Trucks

1 Answer

I needto to change the spark plugs


When did you change your plug wires last?

Dec 30, 2012 | 1998 Oldsmobile 88

1 Answer

My 96 olds does not like to start when it gets hot. seems to start ok when it cools down. Any ideas? It doesnt start real easy when its cold. have to rev a let idle a little before moving. idles pretty...


Hello, I have 1996 Ciera with rebuilt engine pretty new, also fuel filter and fuel pump replaced but I have a problem, the car starts and runs well cold but once car has been running for a few hours, either stopping or coming to a stop it starts to idle roughly and has come to a stop at different occasions. Check engine light does come on and off occasionally. Can you help?

Nov 05, 2010 | 1996 Oldsmobile Cutlass Ciera

2 Answers

My 1998 Olds 88 has been stalling and running rough.


Check and clean the IAC valve. Idle Control Valve. Use brake cleaner or carburater cleaner . Remove the duct work from the air filter assembly. It is located just inside . Run the engine at 1200 rpms and spray the valve. The valve can also be removed and cleaned.

Jan 07, 2009 | 1998 Oldsmobile 88

1 Answer

Very Rough Idle and sometimes cuts off while idling





sounds like bad Idle Air control valve Not Cheap


wl2ac485003.jpg

Jan 06, 2009 | 1993 Nissan Maxima

1 Answer

Rough idle/stall


i would start with the TPS ( throttle positioning sensor ).

Nov 11, 2008 | 1997 Chevrolet Camaro

3 Answers

95 cadillac eldorado engine stalls rough idle check engine light is on


I have a 1994 Cadillac Eldorado and every time i start it the car has rough Idle and the Idle fluctuate's. I also can feel it in the gas pedal when the car is doing this I tried replacing the throttle body sensor but it still does it I also was told it was the Idle error sensor. So instead of spending the unecessary money again I thought I would go online and see if anyone could help me with this problem.

Sep 30, 2008 | 1995 Cadillac Eldorado

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