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1991 s10 blazer 4x4 eng. dies in rev/drive


captcaveman
01-21-2005, 04:02 PM
starts great, runs great, dies when i put it in rev. or drive.
put in new coil and new distributor with new control mod,pick-up coil
new ecm, all tune up parts are new, its in the shop and was on a scope
they can't find anything wrong, if i unplug the wire to set the timing the vehicle drives great. any ideas?

Mikado14
01-21-2005, 06:20 PM
starts great, runs great, dies when i put it in rev. or drive.
put in new coil and new distributor with new control mod,pick-up coil
new ecm, all tune up parts are new, its in the shop and was on a scope
they can't find anything wrong, if i unplug the wire to set the timing the vehicle drives great. any ideas?

Check your knock sensor.

captcaveman
01-26-2005, 03:24 PM
[QUOTE=Mikado14]Check your knock sensor.[/QUOTE

knock sensor checks out ok, fuel press. checks out ok, the shop had the blazer for 2 weeks now and gave up on it. ground wires were allso checked. everything is new so they are at a loss as to what is wrong.

captcaveman
02-09-2005, 09:15 AM
[QUOTE=Mikado14]Check your knock sensor.[/QUOTE

knock sensor checks out ok, fuel press. checks out ok, the shop had the blazer for 2 weeks now and gave up on it. ground wires were allso checked. everything is new so they are at a loss as to what is wrong.

update: got it fixed, the new distributor was bad, got another one and its back on the road again!

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