I replaced my APPS sensor this evening and went out for a test drive. I drove it harder than usual and noticed at WOT I can hear a flapping sound from the engine compartment. Kind of like shaking out a dry shirt. Only happens at WOT though. Fuel psi is 15 and boost is 28 at WOT. Also when I pulled into the driveway and slowed down the engine stumbled and almost died. Then came back to normal. Any ideas?

Error Codes?

 

Fuel Filter? (Yea, I know your pressure sounds good.)

 

Turbo issues?

 

Air Filter plugged up?

Error Codes?

Fuel Filter? (Yea, I know your pressure sounds good.)

Turbo issues?

Air Filter plugged up?

Bad tank vent?

I wonder if the flapping sound was turbo bark. But the almost stalling has me stumped a bit unless the APPS sensor is not getting to Idle Position and setting the IVS.

I wonder if the flapping sound was turbo bark. But the almost stalling has me stumped a bit unless the APPS sensor is not getting to Idle Position and setting the IVS.

I think I've figured out the stalling problem. Believe it or not this is the first time the fuel has been below a half a tank since I bought the truck 4 months ago. I thought my fuel pressure gauge was crapping out because it was all over the place and its a cheap GlowShift. Driving to work this morning the truck quit in the road. Finally started it back and made it to the fuel station. Filled er up and fuel pressure gauge went back to normal and no more problems. I need a draw straw. Now the problem is in the tranny. The last two mornings I've pulled up to a stop sign then went to go and truck acts like its in neutral. Finally it engages and I don't have any more issues.

Oil level? I've had something like that when my tranny oil level got low.

For the time being, put it in 1st at every stoplight, then "D", until you can get an OSS (Output speed sensor), Gov sensor, Gov solenoid, change fluid & adjust bands.

 

Ed

For the time being, put it in 1st at every stoplight, then "D", until you can get an OSS (Output speed sensor), Gov sensor, Gov solenoid, change fluid & adjust bands.

Ed

Ed, I just did all of that and the shift kit two months ago. Only thing is that the other day I drained some fluid a couple days ago because it had bubbles on the dipstick. Going to put the fluid back and see what happens.

Low fluid would do it...

 

Ed

This gets me thinking... I should really do a shift kit.  Sounds like you baby your trans and are still developing issues.  Hope they clear up for ya with a simple addition of fluid.

Low fluid would do it...

Ed

Low fluid was the culprit. Everything is back to normal now.

This gets me thinking... I should really do a shift kit. Sounds like you baby your trans and are still developing issues. Hope they clear up for ya with a simple addition of fluid.

Do the shift kit. You won't regret it.

This gets me thinking... I should really do a shift kit. Sounds like you baby your trans and are still developing issues. Hope they clear up for ya with a simple addition of fluid.

Don't forget gov solenoid, sensor, speed sensor, band adjustment, and might as well install drain plug while your there.