Question about 1991 Isuzu Pickup

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91 isuzu, cranks and runs fine just idled way too high, adjusted idle screw but no difference

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Check the engine breather pipes for perished and splitting first

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1 Answer

How to adjust idle speed

Remove air filter, warm up engine, plug the IAC port (the small hole in the bottom of throttle body) the adjust idle screw c/wise or anti c/wise to set rpm. REMOVE IAC plug and check the performance. Good luck.

Mar 09, 2014 | 1997 Saturn SL

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I have a1985 isuzu pup with the 1.9 ga s engine and when i crank it it idels high with the carburater rebuilt

check the position of the idle screw on the throttle linkage and adjust the idle /mixture screw as well as both affect the idle speed . Check for any vacuum leaks before this

Nov 30, 2013 | Cars & Trucks

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How to adjust the idle screw on a 1993 2.6L isuzu pickup?

it should be run be a sensor idle air control valve

Dec 02, 2012 | Cars & Trucks

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328 gts 1986 very rough idle, running rich you can smell the gas from the exhaust . runs fine once the throttle is pressed

you need to adjust your idle screw on your carb i could tell ya how on that type of car but your running to high of an idle and flooding your cylinders thats y it is idleing rough and you can smell the gas, adjust your idle screw back a little and then you might want to check your plugs and make sure you didnt fowl and of them with it running rich

Apr 21, 2011 | Ferrari 328 Cars & Trucks

1 Answer

91 buick runs fine then it would kick into high eccalration when you shut in down and start it back up runs fine replaced tps and crank sen. and oxy sen.found a broken vac line going to gas tank can that...

Vacumn leaks will cause a high idle as described..but if its the canister line it will only leak when canister purge solenoid is activated . and will likely not affect idle..When you changed the tps did you set it with a scan tool ?? the tps voltage at closed throttle must be set at .47 volts or a whole bunch of wacky things with the Idle can occur...

Apr 05, 2010 | 1991 Buick Century

1 Answer

High idle around 2000rmp

Most likely is your idle speed timing, there is either an adjusting screw, or you need the dealership to place a diagnostic tool on there threw the computer to set it down some.

Jul 12, 2009 | 2000 Isuzu Rodeo

1 Answer

Choke Light rough idle

adjust your carb, the 2 screws on each side of the carb adjust so you can get the car to idle correctly, also check your distributor

May 26, 2009 | 1985 Chevrolet Chevy

2 Answers

Idle problem

turn the idle screw down on the carburater

Feb 17, 2009 | 1988 Honda Accord 4 Door

1 Answer

Rough idle stalls at low rpm's

hello first check your idle with the car running foot on brake see were your rpm reading is if your below 500rpm check your label underhood for your curb idle setting second see if theres a adjustment screw you can increase were your gas cable lever rest against your set screw underhood if you feel confident enough remove your iac motor idle air control valve if the bore were the end of the pintle extracts out to close has varnish builup our carbon it will stick creating vacuum leak type senario causing stalling rough idle sometimes even no start conditions good luck

Sep 14, 2008 | 1988 Honda Accord 4 Door

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