I finally got my truck going after several years of work and problems. The truck is a 1994 ford f350 7.3idi. I am having problems building boost. The truck will jump to 8psi and stop. I adjusted the waste gate up very tight with no change so now I'm looking at a few things. I am going to look for exhaust leaks and at first I had one that was preventing any boost at all. Secondly can timing effect the boost? At idle it sounds ok but a blip of the throttle and it sounds more like a gas engine. I'm wondering if advancing it will help. Any ideas? I'm not rolling coal and I think my egt's are a little on the warm side.
Build finally finished but issues???
- Thread starter Joejohn
- Start date
icanfixall
Official GMM hand model
Boost is effected by heat in the exhaust. Hest is what mainly turns the hot side of the turbo which directly turns the cold side to build boost. Any boost or exhaust leak will limit your boost. Look closely at the exhaust flanges. any soot buildup is an exhaust leak. Look at the intake side for any wet places. Thats a boost leak because the cdr oil vapor is mixed in the air charge and shows up better than a plain air leak. It sounds to me like you have a leak that limits your boost because the seal can hold the 8 lbs pressure then it leaks.
http://www.youtube.com/watch?v=rpPcezm106w
http://www.youtube.com/watch?v=ioT_Uv4V-OE
http://www.youtube.com/watch?v=AnqGG7rQ1oE
Here is a vid of idle and off throttle. I think its just the wastegate holding boost back as I could hear it opening today. I cant find any leaks. I think my IP timing needs advance.
http://www.youtube.com/watch?v=ioT_Uv4V-OE
http://www.youtube.com/watch?v=AnqGG7rQ1oE
Here is a vid of idle and off throttle. I think its just the wastegate holding boost back as I could hear it opening today. I cant find any leaks. I think my IP timing needs advance.
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The GP controler is dieing and frying the **** out of your plugs, unplug it and run a switch. This happened to my truck - I fired it up, backed up to my trailer and when I got in the WTS light was lit up and wouldn't go off. The next time I tried starting - nothing. All GP's were dead - luckily they all came out.
Any info on how to rig up a switch to eliminate the controller?
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