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dogmadan
New User
Oct 18, 2010, 7:35 PM
Post #1 of 7
(1377 views)
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I have a '97 GMC Sierra, 5.7L Vortec 4x4. A couple of months ago it just started running like crap. I couldn't even drive it, it was that bad. Some one told me the catlytic converters were plugged so I cut them out and put in pipes. No change. Then I thought maybe the fuel filter was plugged so I replaced that. Still the same. I did some reading and all things pointed to the crank position sensor. So I started messing around with it. Sure enough when I was able to get the truck running, I would get under the truck and gently push on the CKP sensor, it would start to run smooth. I have a lot of oil leakage near the ckp sensor, so I thought if I cleaned the wiring clip for the sensor it may help. So I sprayed it with brake clean and there was no change. So the next day I purchased a new CKP sensor and put it in the truck. Now it won't even fire. NOTHING! I put the old CKP sensor back in and still nothing. I even went so far as to change the wiring clip that plugs into the CKP sensor. I am lost. Did the brake clean short something out or completely burn out the wiring? Or is this something much bigger than a crank position sensor? I have also ran a code reader on the truck and the only error codes that come up have to do with CKP sensor and camshaft position sensor issues. Low voltage issues if I remember correctly. Any ideas out there?
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 19, 2010, 2:48 AM
Post #2 of 7
(1366 views)
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Re: Please Help Me!
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I think it's probably time that you started paying someone else to do your repairs. It sounds like you have exceeded thousands in damages now trying to repair this yourself. Those converters alone will probably be $1,000.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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dogmadan
New User
Oct 19, 2010, 4:12 AM
Post #3 of 7
(1358 views)
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Re: Please Help Me!
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I always appreciate insults when I ask for help. For your information, as I stupidly failed to mention in the original post, the converters were coming apart inside anyway. So they were going to have to be replaced regardless. Now if anyone out there has something CONSTRUCTIVE to offer, I would greatly appreciate it.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Oct 19, 2010, 4:36 AM
Post #4 of 7
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Re: Please Help Me!
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Ditto:
Quote ">>Some one told me the catalytic converters were plugged so I cut them out and put in pipes.<<"
Why oh why would you do that? You could have done some simple tests to know if they were plugged and yes that pipe with the converters and FOUR o2 sensors is monster bucks!
Maybe that "someone" will help you pay for the new pipe which I'm near sure exceeds $1,000 bucks - that and the sensors that there are four of that probably won't swap over!
T
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 19, 2010, 7:06 AM
Post #5 of 7
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He's approaching this diagnosis like a blindfolded gorilla with a baseball bat. Everything he has suspected is now no longer working and instead of finding the original problem, he keeps creating new ones.
I haven't read anything about stored codes, not that they would be much help any more since so many things have been disconnected and likely new, false codes set. I'll bet he has tried turning the distributor to change the timing too. Where the hell do you start?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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dogmadan
New User
Oct 19, 2010, 6:58 PM
Post #6 of 7
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I'm sorry I asked for help. This is what is wrong with the world. No one wants to help, just insult. I have found that the people who insult really don't know a damn thing. They get through life just crapping on others to make up for their short comings. You should have your fancy mechanics badge taken away from you for sheer ignorance. And just for the record I did not move the distributor to change the timing. That would be stupid. AND the catalytic converters were rattling and spitting their guts out of my tailpipe, so they would have to be changed regardless, as I mentioned in my last post. And after all this I did manage to figure out what the problem was without the help of all you so called experts. A little research and a little perseverance and voila, problem solved. It runs like a top. Now I can focus on fixing all the "dumb" things I did along the way. Thanks for nothing.
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 19, 2010, 7:07 PM
Post #7 of 7
(1329 views)
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Re: Please Help Me!
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No problem. Come back again when you trash another car trying to fix it.
And for the record, you couldn't change the timing on that engine if you tried.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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