What's new
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

89 Blazer Silverado - Electrical Problem

C

CircuitMan

Newbie
Joined
Aug 15, 2005
Posts
3
Reaction score
0
Location
denver
Hi, I'm Kyle, I'm an installer for Circuit City, and I joined this forum to ask about an 89 Blazer I want to buy. He is flexible on the price because the truck has developed an electrical problem - it starts, but any bump causes it to die - and the ecm fuse blows. Is the ecm shot? Has anyone heard of this problem? And were would I start to look for the problem? How complicated is the ecm on this vehicle?
 
wow, I read those topics, and it sounds like a ton of work to troubleshoot this problem. I have a couple questions - Ehat does and ECM cost? and How much time and money should I expect to spend on this sort of a problem?
 
I had a problem similarly to this on my 90 K-5. It turned out that one of the wires that the ECM uses had shorted out. Once I found it it was an easy fix. I know that this wont help you find your problem but it’s a short somewhere in your wiring harness.

Dan..
 
Don't waste money on the ECM, 99% of the time they aren't the problem. Agree with the others, likely a wire issue before it gets to the ECM.
 
Gonna have to trace a wire, cause you have a short...
My S10 Blazer did that. Found that the PO had put spade connectors on the oil pressure switch instead of a new plug, and after a long trip, the exhaust heat melted them together and would blow the ECM fuse.
 
yes, 6.2LTrailblazer84, I do ;-) So then, how much time should I plan on to fix this, if it takes a long time? I'm feeling like I'd better get this truck cheap - there are a lot of blazers out there.
 
You must log in or register to reply here.

Latest Posts

Top Bottom