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1989 chevy c/k truck 4/w drive . Starts, but no power. Runs fairly well for a minute or so when cold. Then starts missing and flames come out the carberator. Put a new timing chain on and it ran for about a week and then went back to the same problem. Just replaced the ignition control module, but no change.

Submitted: 93 days and 6 hours ago.

Category: Chevy

Value: $15

Status: AWAITING CUSTOMER ACTION

Year : 1989
Make : Chevrolet
Model : c/k truck
Engine : 5.7 liter

Already Tried:
timing chain
map sensor
ignition control module
oxygen sensor

Posted by GNwrench 92 days and 20 hours ago.

Info Request

ok so this has a carb?or thottlrbody injection with 2 big fuel injectors sitting on top of the throttle body?so when it skips it actually will pop back threw the intake..will this pop back threw at idle?or under load?or just when cranking it to start it up?

92 days and 3 hours ago.

Reply

throttle body injection. Back fires or missfires at idle or advancing the throttle. throttle can be almost open and no significant increase in rpm. my cell phone is XXXXXXXXXX if you need to call.

ken wyse

Posted by GNwrench 91 days and 19 hours ago.

Info Request

the number didnt show up...is it a constat poping threw the throttle body at idle kinda pop pop pop pop can you pull off one plug wire at a time and see which wire you pull off does NOT make a change in the idle?

91 days and 16 hours ago.

Reply

at this point it won't run long enough to try that. don't believe there is any pop pop. When it was running fairly well last tuesday, there may have been a little pop or hesitation every 30 seconds. my cell phone is two four eight four six two four eight five seven.

Posted by GNwrench 91 days and 16 hours ago.

Info Request

ok pull the cap and rotor and look close at the reluctor wheel that is supposed to be pressed onto the dist shaft push it one way then the other with a screwdriver and make sure it is not loos..also look for cracks on the magnet in there..if it pops while acceleration spark is jumping or being sent at the wrong time..make sure firing order is right and also make darn sure the cap and rotor are not burnt

83 days and 6 hours ago.

Reply

Reluctor wheel is not loose, and I didn't see any cracks on the magnet. I will get a new distributer and try it. Unless you have more suggestions.

Posted by GNwrench 82 days and 22 hours ago.

Info Request

are the wires new?before you buy a distibuter can you do a compression test?

82 days and 5 hours ago.

Reply

wires are less than a year old. yes, can do compression check

Posted by GNwrench 81 days and 22 hours ago.

Info Request

yes let em know what all 8 cylinders are for PSI

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Optional Information

Year : 1989Make : ChevroletModel : c/k truckEngine : 5.7 liter Already Tried: timing chain map sensor ignition control module oxygen sensor

Info Request

ok so this has a carb?or thottlrbody injection with 2 big fuel injectors sitting on top of the throttle body?so when it skips it actually will pop back threw the intake..will this pop back threw at idle?or under load?or just when cranking it to start it up?

Reply

throttle body injection. Back fires or missfires at idle or advancing the throttle. throttle can be almost open and no significant increase in rpm. my cell phone is XXXXXXXXXX if you need to call. ken wyse

Info Request

the number didnt show up...is it a constat poping threw the throttle body at idle kinda pop pop pop pop can you pull off one plug wire at a time and see which wire you pull off does NOT make a change in the idle?

Reply

at this point it won't run long enough to try that. don't believe there is any pop pop. When it was running fairly well last tuesday, there may have been a little pop or hesitation every 30 seconds. my cell phone is two four eight four six two four eight five seven.

Info Request

Reply

Reluctor wheel is not loose, and I didn't see any cracks on the magnet. I will get a new distributer and try it. Unless you have more suggestions.

Info Request

are the wires new?before you buy a distibuter can you do a compression test?

Reply

wires are less than a year old. yes, can do compression check

Info Request

yes let em know what all 8 cylinders are for PSI

Related Chevy Questions

Year : 1989
Make : Chevrolet
Model : c/k truck
Engine : 5.7 liter

Already Tried:
timing chain
map sensor
ignition control module
oxygen sensor

throttle body injection. Back fires or missfires at idle or advancing the throttle. throttle can be almost open and no significant increase in rpm. my cell phone is XXXXXXXXXX if you need to call.

ken wyse