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what causes engine deiseling??

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Old

08-25-2010, 10:35 AM

#1

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what causes engine deiseling??

85 5.0 carb,75000 miles.idle sometimes is at 1300 and when i try to shut it off the engine deisels for about 5 sec. what causes this?

my84camaro is offline

Old

08-25-2010, 03:29 PM

#2

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Car: 1986 Camaro Z28 IROC-Z

Engine: 350 Tuned Port Injection, for now.

Transmission: 700R4

Axle/Gears: Posi - 3.23

Re: what causes engine deiseling??

Quote:

Originally Posted by my84camaro

85 5.0 carb,75000 miles.idle sometimes is at 1300 and when i try to shut it off the engine deisels for about 5 sec. what causes this?

Bad timing, high upper cylinder temperatures. Check the EGR system.

Chevy86 IROC-Z is offline

Old

08-25-2010, 04:27 PM

#3

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Car: '83 WS6 T/A 65,000 miles

Engine: 5.0L vin H stock, 406SBC right now

Transmission: T-5

Axle/Gears: Corp. 3.73

Re: what causes engine deiseling??

Find out why it idles too high...vacuume leak, carb/AC solenoid applied, lean condition for some reason.......????

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Old

08-26-2010, 12:48 AM

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Car: 84 Z-28

Engine: 305 HO

Transmission: r-700

Axle/Gears: 3:73

Re: what causes engine deiseling??

Idle too high or timing too far advanced.

My 84 carb. HO idles at 800 a/c off..............

sonjaab is offline

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