Engine/Transmission (1994 - 1998) Help! Where did my horsepower go?

[LRamey]

Need some ideas!

After installing my HX-40 it would really take off around 1700 RPM and the boost would shoot up to around 40psi quick. this was around 2 months ago. Took a trip early June pulling the camp trailer and everything worked great, lots of kick. After a week or so it seemed like the boost wouldn't kick in until around 2200 rpm. Now I can't get more then 20 psi even @ 2800 rpm & my HP is in the toilet. Oh sure, I can get it up to 90 mph, but it takes awhile. Seems like I have fairly good power taking off but the boost never really kicks in, even with propane.

I've changed the fuel filter but no help.

What else do I need to do?

Thanks,

Lonnie

 

[gitchesum]

I woiuld check out every boost system connection you have.



I've gone as far as taking all my intercooler boots off and re-installing them to make sure there wasnt a problem.

 

[LRamey]

gitchesum,

I'm begining to think a boost leak may be the problem also. I've got my propane set to come on around 6 psi and it doesn't kick in until around 18 psi. So I'll start there.

Thanks,

Lonnie

 

[Sled Puller]

You may have blown the intercooler, and where it blows, you can't see it until it is out.

 

[LRamey]

FOUND IT!

Had a boost leak in the boost control line to my propane setup. Plugged it & yee haa were back!

Thanks for the help guys!

Lonnie