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Discussion Starter #1
Does anyone know why my number 10 fuse (odd# injector bank fuse) blows every time I put a new one in and turn key?? Also it turned on my tc and service stabilitrack lights..
So I was driving about 30-40 when all the sudden tc and service stabilitrack lights come on and my car starts running rough,on 4 cylinders, followed by a check engine light.. the check engine light codes are fuel injector circuit open on each odd number injector...
To make things a lil more weird, the same exact problem happened to me like 3 months ago.. I realized the fuse was blown so I changed it and all lights in dash went off and the car worked perfectly fine....
up until now..
ITS BACK.. but with a vengeance this time..
I have a pile of blown fuses from trying to replace the fuse just as I did the last time, but it’s not having it.. I don’t even have to start car, just turning it to on position blows it.
Just looking for a little insight from someone who has heard of or seen this problem before...
Ps: I do not drive my car like a grandma, I run it hard..including burnouts and donuts.. but it’s completely bone stock other than straight pipe and 2nd cat delete.
 

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Sounds like you have a wire somewhere on the engine that has been rubbed or pinched and is touching metal causing a short. If it was mine I would get out a good multi meter and start by unplugging wires on the "odd" bank side like injectors and such, stop wasting good fuses and use a meter.
 

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Discussion Starter #3
Sounds like you have a wire somewhere on the engine that has been rubbed or pinched and is touching metal causing a short. If it was mine I would get out a good multi meter and start by unplugging wires on the "odd" bank side like injectors and such, stop wasting good fuses and use a meter.
Ok JWD621 thanks I will try this wen I get home.. I’m not really skilled with it but I do have a Klein meter..
by any chance do you know what side the odds are on, driver or passenger?
 

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I know all about the old chevy engines before the LS series engines came out, but they were all built the same as firing order was 18436572 for V8's. That being said...2468 was always at curb side or right hand side from driver seat. 1357 was always on the driver side of engine front to back.
 

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Please reply with the solution to your problem, it could save a lot of time and money to everyone.
 

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Discussion Starter #6
Hey man I apologize for not posting my results sooner.. but you called it..
So I unplugged all injectors and coil packs after I metered the fuse.. meter showed direct ground fault.. so after all was unplugged the fuse still popped which told me it was somewhere before injectors and packs but after the fuse....
So I took off the intake tube and throttle body following the harness and the harness was wedged in between engine block and throttle body.. and I guess it just got so hot over time the block ate through the wire loom and had pierced through the plastic coating on the wire allowing it to rest on the block... the wire was still in good condition, just charred a little on top.. I taped the wire up individually...then taped the full bundle thoroughly in that area..then added new wire loom..and then thoroughly taped full bundle again...
Should I do anything else to prevent this from happening again?

Shame on GM for routing that harness so poorly with no extra heat protection.
 

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Good job! Now anyone with same trouble knows where to look. Thanks for the reply(y)
 

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Sorry to hear that, what a bummer. The whole front facia nose clip is just molded plastic and easly removed in about 30 minutes. I would look online for a good used one and might find one the same color.
 

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Discussion Starter #11
Yea ima have to look online.. the only major components we really need is the bumper and radiator.. all harness connectors are in tact still.. it wasn’t a blunt force impact, the nose end just got swiped by oncoming traffic due to him being pulled out a little too far trying to see around a blind corner...
Do you by chance know if there is any ac lines or anything ac related that run up front?
 

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I am not sure, but I think they are all just in front of radiator.....so you will have to examine them carefully. I have had the same issue with traffic and not being able to see what is coming without pulling out too far. I have learned just to have patience as I get older. Still have trouble with it and I am 68!
 
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