Hello, I have a 95 Suburban 6.5TD and I just recently did the hx40w-II turbo swap. It has around 295K miles on it and still runs good. The swap itself was a success and I drove the truck for few hundred miles now with no problem. This morning since I haven't drove the truck for the past few days, I turn it on and ran like it normally do. Suddenly, I felt that something is wrong with the truck as the rpm kept going up and down while I'm trying to cruise at around 65-70 mph.
Then the CEL just can on in a flash and when away. The truck wouldn't stay at constant rpm and still bouncing up and down. The truck starts up with no problem and revs nicely. Just when running at 65-70 mph where this problem starts. I even had it on 3rd and see how it goes and it does stay at a constant rpm of around 2500 going around 65 mph.
I just pulled the dtc doce and so far I got the following:
15, 25, 27, 63
Could it be the PMD? I may clear the codes again this afternoon and run the truck to see if those codes will come back again.
If anyone here can give me a little bit help on what this maybe, that would be great.
Then the CEL just can on in a flash and when away. The truck wouldn't stay at constant rpm and still bouncing up and down. The truck starts up with no problem and revs nicely. Just when running at 65-70 mph where this problem starts. I even had it on 3rd and see how it goes and it does stay at a constant rpm of around 2500 going around 65 mph.
I just pulled the dtc doce and so far I got the following:
15, 25, 27, 63
Could it be the PMD? I may clear the codes again this afternoon and run the truck to see if those codes will come back again.
If anyone here can give me a little bit help on what this maybe, that would be great.
