Another head gasket thread

[Pyro6]

I appreciated this investment this weekend.

[Steve Wood]

LOL...too old?   I been saying that for 30 years!

[Pyro6]

Things didn't go so well today. Started it up, had an exhaust leak at the turbo/header connection. Didn't want to get it too hot, shut it down and got a couple extra 1/8 turns on the nuts. Started it up. still leaking, shut it down. Few more 1/8 turns, went to start it up, crank crank crank, no tach signal on the dash. On the third day of sacrificing time on this car, my attitude immediately went south. Slogging ahead, 140 psi compression @ 1 & 2, gettin spark, no injector pulse w/noid light @ #3, (GN language for you're screwed). Hooked my scanner, no codes, no RPM signal. Plugged in my cam tool, got the blink. Scratched the purple/white wire at the module (disconnected KOEO), no injector pulse. Plugged in my spare ECM, no change except now I don't have fuel pressure. Explosives to this car is looking real inviting.

[Pyro6]

I think she's gonna find a new home.

[Just a Six?]

I think she's gonna find a new home.

Time to have some beers & forget about the car for today. Tomorrow you will probably find the problem in the first 30 mins.

[Steve Wood]

Me, I would have looked to see if I had pinched the injector harness by the egr....then checked the fp fuse, all of this after drinking a DP, working the cross word and calming my mind...David is right

[Pyro6]

Thanks Dave and Steve. I'm cleaning up tools and just thinking about it. I fix cars all day all week and I think I'm pretty good at it. This time I had to struggle just to get to the garage and do what I knew had to be done. All seemed to have gone well, the car started and ran and sounded normal minus the exhaust leak. I wasted 3 days when I could've done family stuff. I don't know.

[Steve Wood]

I don't see how you wasted three days....stop whining and fix the damn problem.  No injector pulse and no fuel pressure is a pretty good clue as they have one thing in common

[Pyro6]

Thanks for the punch in the head Steve (insert smiley here someday). The FP fuse was blown. I put another in and it blew out too. Pulled the coil pack/module (no EGR) to make sure the injector harness didn't get pinched. Disconnnected the injector harness, another fuse gone. I don't think so much as whining but pissed off and severely frustrated as I hear another tow truck come in for the 7th car not on schedule. I know now my chances for Maple Grove and Cecil are dwindling on a 4 day week. I need to be ready Friday at 3. I'm missing something else. The damn thing ran w/42 psi. I  really appreciate the help. Dave is right, I probably should sleep on it but I know the friggin problem is right there. Disconnected the FP hotwire, still shorted.

[Steve Wood]

I would have guess you pinched something, but...somethin g shorted...glad it is not the injector harness because that can blow a driver in the ecm.

Look at the diagram   http://www.vortexbuicks-etc.com/fuel_pump.htm

I would have a quick look around the the fuel pump test connector to make sure nothing there is touching..then go to the fuel pump relay and pop the connector off.  See if that makes the fuse blowing go away.

When I am intelligently looking for a short, I insert a lite bulb across the fuse terminals which promptly lights up under a shorted conditon.  On long enuf wires, I can see it from under the hood.  Then I mess around with the harness til I find the shorted spot and the light goes out...

Now, in reality, I seldom think about such until I am finished and kicked back in my chair, then I think, Dumb ASS, you just changed ten fuses with no reason because you cannot remember to get your tail light bulb out that you soldered the long wires and spade terminals on...then I think...oh hell, you probably could not have found it anyway

[Charlief1]

You can also put a breaker in it instead of a fuse Gary. It will go on and off so you have some time to see if you can find the short. Granted, you have to be carefull diong it but on PITA shorts it usually helps to find them.

[Steve Wood]

or, just be boring and unplug the connectors and see what leg is shorted with your meter..but, that takes all the fun out of it.....

[Steve Wood]

I am surprised that Firebird has not been over to tell you that the second most common place to pop that fuse is the wiring feed that goes to the oil pressure sender on the front sender and that you probably moved it while trying to stop the leak under the turbo.  When you get old, if it ain't number one, it is usually number two! 

[Pyro6]

One of the 1st things I checked was the sensor and wire, I thought maybe the sensor shorted. Just found what I think is the problem, connector at the fuel pump relay. If it ain't the problem is sure is gonna be one. Where do I get a connector and relay?? Caspers?

[Just a Six?]

Fresh set of eyes today saw that right away just like someone here mentioned yesterday!

Caspers will have what you need if that is the culprit?