ignition problems

syco 2

New member
i was just wondering why do these trucks have so many ignition problems. is it the heat? also im still waiting to pick my truck up and after reading all of these posts am really considering getting something else. dont get me wrong but i love these trucks i have always wanted one my first truck or car was a sonoma gt but im starting to worry. well for the truck it has only 26,000 mi with a throttle body air foil a fpr a kenne bell cold air intake and a flowmaster exhaust with no cat. can somebody help :-?
 

SY2455

70's Veteran
Well when I got my truck it run OK for 53000 miles with all the stock parts in as built. I did a tuneup on it & what a difference it made. If you have a stock truck with the few things you have listed I would not drive without a CAT, because You are looking to buy a engine real soon.. I now do a tuneup every 4 months on plugs, every 6 months on wires, cap & rotor.
 

syco 2

New member
thanks .yea i heard about the cat and that i will get an overboosting problem thats the first mod im going to do to the truck.
 

SY2455

70's Veteran
When you do your exhaust look into adding a Cat, but run straight exhaust with no muffler. The truck are pretty quiet this way & some of the testing that GM did was done this way back in 1990-1991 before production.
 

Baja Resident

New member
Mine didn't have a cat when I bought it. It ran 17-20psi and it never overboosted at all (before turbo blew), but then again it was a built motor with external wastegate. Is the problem with stock trucks mostly?
 

TYTILIDIE

METH HEAD
I am a witness to the oerboost. I built my motor last year and cut out my exhaust. I clamped a muffler to the downpipe and after a month or 2 had a guy put a pipe on it. When I got my Datamaster working last month I had overboost. I was getting 9* of retard and would feel it get real sluggish going down the track. DM said 17 PSI. I just got it all done right today. Got 3" removable cat adn 3" all the wayout the back. Sounds bad ass. Did a run and have a max of 14 PSI and according to DM am .5 faster in my QM. Sluggishness down track is gone. JUst got a measly 3* of retard to do away with as Ive gone down to a max of 6*.

Mike
 
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