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-   1992-1999 (https://www.gmforum.com/1992-1999-91/)
-   -   GAH! Broke down..Cranks but no start. (https://www.gmforum.com/1992-1999-91/gah-broke-down-cranks-but-no-start-275700/)

Bonneville92V688 04-25-2008 04:21 PM

GAH! Broke down..Cranks but no start.
 
So, yesterday I went to get gas, car ran great, no problems at all. So I proceed to pull in the gas station, went in, paid for my gas and pumped it. Got back in the Bonne... crank crank crank crank...hmm uh oh...crank crank crank crank...SHIT!

So, I pull out my scantool, no codes...hmmm. Fuel pressure, perfect...hmm. So anyways I got it towed home, and this is when I found my grandma (see post in lounge), so today I want to diagnose it. So a few minutes ago, I checked the spark, and guess what? No spark! So guys, what can the problem be? I have no codes, fuel pressure is fine, but no spark whatsoever.

Urgh... :x

EDIT - yes, all fuses are good. I checked. ;)

banned3800 04-25-2008 05:03 PM

Id say one of 3 things...

Crank Sensor

Ignition Control Module

Or Possible bad wire to one of the 2 above

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sandrock 04-25-2008 05:06 PM

Seeins how you just messed with the frontend of the engine, I would guess your ICM harness.

Got a spare ICM laying around?

banned3800 04-25-2008 05:09 PM

Isn't the 92 an adjustable crank sensor? Where the 93 is set it and forget it?

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petraman 04-25-2008 05:09 PM


Originally Posted by jr's3800
Ignition Control Module

Wouldn't hurt, you were gonna change it anyways ;-)

Bonneville92V688 04-25-2008 09:17 PM

Crank sensor is fine, it was just replaced with a new ACDelco one. I have absolutely no codes also except for the normal 58.

I absolutely have no spark, so I am assuming a bad ICM, unfortunately I don't have the money at the time, so if anyone has a spare one, I'd like to borrow it to be absolutely certain it is my problem. I am not too happy because it just HAD to fail right before Sears will end up calling me in for my job training. :roll:

If anyone has one to sell me or borrow, PM me with a total price, or a price for shipping if I can borrow it.

Technical Ted 04-25-2008 11:06 PM

Did you check the fuses on the passenger side? The ICM fuse is over there. If you have a voltmeter it's actually easier to just check for 12 volts (key on) at the pink wire going to the ICM.
If the crank sensor was rubbing on the harmonic balancer it wouldn't last long.

petraman 04-25-2008 11:23 PM

you sure you're getting pressure? Because I've had problems with the fuel pump fuse going out before...

Bonneville92V688 04-25-2008 11:26 PM

All fuses are fine, never had a fuse blow so far. Fuel pressure is the norm. with the key on. Someone told me that the ICM could have failed due to lack of dielectric grease on the back. True? Just wondering because it's never had any grease on it.

BTW, the crank sensor is fine in terms of adjustment, I have friends in places (got to borrow a crank sensor tool from the dealer) 8)

petraman 04-25-2008 11:36 PM


Originally Posted by Bonneville92V688
All fuses are fine, never had a fuse blow so far.

Well, just to let you know, I've had to replace that fuse twice on that car ;-)


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