help!!! missing bad

[dieselbop]

I was on a trip yesterday and cruising down the freeway and the truck started shacking when accelerating. I thought it might be bad fuel so I ran it until about 1/4 tank and filled it at a truck stop. Still does the same thing. At slower speeds it really misses bad also. If I am just criuising on the freeway at 65 m.p.h the truck seems to run fine. When this happens it feels like I am going over stop strips. Any Ideas would be greatly appreciated.

Thanks in advance

[Brian]

is all the maint. up to date?

[dieselbop]

all maint. is up to date

[urbanstroke99]

Figure out the problem? mine does the same thing.

[mustangz]

Prob the uvc harness.Do you have anyway to check codes?If not find you a auto zone or advanced auto so you can get the codes checked.Also you can look to see if they look burnt.They are on the valve cover made into the gasket.You can kind of wiggle them around and there might be a bad connection.It is a common problem.We need the codes if any.If you check the codes get back to us or someone will probably have more to add.I see you have a superchip praogramer after I went back and looked.Did you get any codes?

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Last edited by mustangz : 02-10-2007 at 08:04 PM.

[stroker27]

how many miles on your truck... mine was doing the same thing ran smooth at 65 idled rough and accelerated rough, what does the exhaust look like?

[urbanstroke99]

i get a code p1316 inject.circuit? should i change it?

[dieselbop]

sorry for the delay. I figured out the problem. I had a fuel injector o-ring torn (#5) and one bent push rod and one broken push rod. Also had a broken rocker arm. In other words I got lucky that I didn't take out the engine. I had a lot of fuel in the oil. Took out 32 quarts of oil/diesel mix when doing an oil change.

[mustangz]

Glad you got it fixed man.What would cause all of those problems.Was it the fuel in the oil or what?