OldmancrashMT
Newbie
I bought this truck with a rebuilt 5.7 motor with about 8500 miles on the rebuild. It has 216000 miles on the body. And a blown 700r4 transmission. As a matter of fact 2 prior blown transmissions. It had been sitting for about 2 1/2 years here in NW Montana. I had it towed home and a couple days later put in a new battery and with only a few seconds of cranking it started. Out came the transmission and to the rebuilder. In the mean time I put new drums, rotors, brakes, spring kits, Ujoints, new axle bearings, new rear gear lube, new front gear lube, shocks. Put the newly rebuilt transmission in and away we went. But it felt more like a 4cyl rather then a 5.7 big ol V8. Just would not get out of the way of its own shadow. So I decided the timing was not advancing correctly and replaced the distributor. Set the timing to 0 and then bumped it to 8deg now. Oh yeah would sit and idle just fine. It would even rev up good. But once it was put in gear it ran like crap. I have a 28 foot enclosed snowmobile trailer that I tow my SxS in and camp out of. Well we took a trip about 80 miles west. Took almost a half a tank of gas. On our return trip just a little ways out of town I blew the governor cap out of the transmission. Towed the truck and trailer to my brother in-laws house and put it up on the hoist. Replaced the cap with a new one and gasket. And after talking to a few folks they said to replace the fuel filter. So we did. Could not even blow through it. Took the air hose and barely was able to blow that through. Got chunks of crap out of it. Away we went. Seemed like it wanted to run like a champ. I was excited. Came back to the shop to get my car and the service engine soon light came on. Did some checking and found that the knock sensor was saying it was bad. Crawled under to replace it and found the connector was all broken up. Replaced the connector and the light has stayed off. But back to running like crap. Rebuilt the TBI thinking a bunch of junk got sucked up. No difference. Pulled the EGR and made a block off plate and still no power. Ran a can of CAT cleaner through and no difference. Heck I even replaced the temp sensor because I read somewhere they can cause issues. Folks, I am stumped. Runs like dog crap and just plain ol wont run. With my trailer on (about 5,000 pounds loaded) I am lucky to get 60mph. Running empty to town I can cruise about 80 but seems like it is dogged down and trying to run against its self. Any ideas? Oh yeah tonight I cut my muffler out and thinking it was plugged and while it was not great I have seen worse. Also when running crappy I get smells of old varnished fuel. I have run probably 7 or 8 full tanks of gas through it. Maybe change the fuel filter again? Try new injectors? Anyone have a TBI thats known good I can try LOL Thank you all and sorry to be long winded
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