
1987 Jeep Wrangler 4.2L Detonation
need a little help on this one. on slight acceleration you can hear the engine detonating ( or pinging as some post called it ) i have checked all the basics the timing is at 9 deg at 1600 rpm as per instructions with vac disconnected ( this has manifold vac t...
FIX posted 11/8/2010
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Message Closed w/FIX
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VIN | 2BCCZ81JXH |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 3-speed Automatic |
Delivery | Carburetion / 2 bbl |
Emissions | ca emissions |
Symptoms | Detonation |
Occurs | On Accel |
Message Closed w/FIX
Vehicle Data
1987 Jeep Wrangler
VIN | 2BCCZ81JXH |
Engine | 4.2 L / 6 cyl / GAS |
Trans | 3-speed Automatic |
Delivery | Carburetion / 2 bbl |
Emissions | ca emissions |
Symptoms | Detonation |
Occurs | On Accel |