Recent content by wpy2080

I have a 94 M998 with a GM 6.2. My buddy has an 87 M998 with the same 6.2. When you drive the two trucks back to back, on the same day, with the same payload, the newer 6.2 has significantly more pep, especially at low speeds. Throttle response better and it's faster. Both trucks have the...

Turns out the issues was the fuel lift pump and the PCB. I replaced the lift pump and the stall went away and when I upgraded to the KDS Smart Start System, the white smoke went away. That was great, but here is the kicker... I needed a few days to calm down before posting. My passenger...

Thanks for all the help. Next time i'm in Michigan and able to work on the truck I will report back...

This weekend I put in a new KDS Smart Start System PCB with matching TSU and new OEM glow plugs. The truck started, no more white smoke, ran for about 3 minutes and then just shut off. Then i put on a brand new fuel lift pump. Went to start and the truck would not even crank... Wait light comes...

Tanabi, keep us posted on the IP issue. I am going through the same thing right now with a fuel delivery problem... They will ruin your week with these trucks. I had my IP rebuilt last year and this spring the HMMWV (1993 - M998) just died as I was driving down the road... I took a video of the...

Again, really appreciate the advice/assistance. - Today i tested the return lines from the IP and blew air. There were no apparent obstructions and i could hear the air in the tank so I don't think the return is blocked - I again tested the fuel flow from the fuel filter to the IP with clear...

Question about trying to figure out if an injector is stuck open... I pulled two fuel lines that run from the IP to the injectors and cranked. No fuel at all is coming out of the fuel lines at the injectors. If an injector is stuck open, would it prevent fuel from going to the other functioning...

Thanks a lot for sharing!

I posted this in the HMMWV forum and i'm still working through some of the recommendations but looking for a backup if i cant fix it. 1994 M998, 6.2. Last spring had Stanadyne IP rebuilt by factory dealer. After new IP, ran great all last summer. This spring, ran no issues for a month or so...

Thanks. There is a fuel shut-off solenoid at the top of the IP. I will try to test that and a lot of people listen for clicks, but i'm hearing that isn't a super reliable test. Any idea how often the solenoids go bad and would that also be indicative of the bubbles and weak to no flow of fuel in...

Anyone know of a good Diesel/injector mechanic (Or HMMWV mechanic) near Traverse City? 1995 M998 HMMWV is giving me fits.

And much appreciated for the help... I’m just mechanical enough to get into trouble when I really start digging...

Would one stuck injector pintle stop flow to other injectors? I pulled 3 lines (lines to the injectors) and cranked, with no fuel. So if I pull the actual injector (any of the 8) and crank, I should be able to see possible back pressure? How would I test the seal in the IP? To make sure no air...

Everything looked dry in the valley. Not losing coolant...

1994 M998, 6.2. Last spring had Stanadyne IP rebuilt by factory dealer. After new IP, ran great all last summer. This spring, ran no issues for a month or so until today. Driving for about 5 minutes and it completely shut off. Pulled over, started again with heavy white smoke, ran for 2 minutes...