1990 Chevrolet K2500 "rough idle" Questions

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Question about Chevrolet K2500

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...rough idle the engine rough idles in when I put the headlights on. This happens when your slow/ idle running/ rpm is very low. Let an expert increase the idle running for you. This will solve it. ...

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Question about Chevrolet K2500

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rough idle 98 chevy k2500 5.7l has rough idle maybe vaccume leak? where do i start? Have you tried changing the distributor cap and rotor? These tend to get moisture build-up and cause a slight ...

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Question about Chevrolet K2500

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gmc sierra rough idle my 1995 GMC idles rough i changed the map sensor throttle sensor heat temp sensor and still no change What are your injectors doing?

idles rough till about 1600 rpm. tried injection pump. starts good 1600 is not idle speed my friend, 600 or 700 is idle speed. You need a tuneup on your 13 year old vehicle.

...not smooth. Surgeing Hello. It seems your truck has either an excessive vacuum leak and/or restricted exhaust problem; this causes rough idle and/or surge conditions. Keep me informed; if you want

91 gmc idles rough and engine surges when driving new engine mostly new sensors and vacuum lines. Truck was running fine got into the gas a little once and started idleing rough. Up And Down. Then ...

Question about Chevrolet K2500

1 Answer

...rough idle replaced map, all ignition rebuilt, new o2 sensor High HC? ****** ignition timing....this will lower HC but raise other values during test. Do you have room to increase other values? After ...

Question about Chevrolet K2500

1 Answer

...idle are when its rough. Also much thanks to Molson02536 for the info on my chevy truck 4x4 problem a new transfer case switch solved the problem. Did you check to see what was inside th eold fuel ...

Question about Chevrolet K2500

1 Answer

...rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion ...

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