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I have had several incidents of not starting while hot. I was towed home a couple times, once I went back the next day and it started right up. I blamed it on the FSD so I got two new ones from Leroy and mounted them both to my heat sink so I can quick change. Since then it has happened several...

I recently replaced my slipping transmission and after reassembly I inadvertently left the fuel heater unplugged. Whilst test driving I had 24° advanced timing with the associated knocking and of course a SES light with DTC 34 - Stepper Motor Fault. When I got home I attempted to retard the...

DTC 34: Injector Pump Stepper Motor DTC 35: Injector Pulse Width Short DTC 36: Injector Pulse Width Long DTC 39: TCC Stuck Off My truck was running great, no codes at all but I couldn't keep my wrenches off the old beast. I had a (25 year old) hydraulic hose burst and decided I would change all...

Leroy is out of stock on the heater for the FFM. I found this one on Amazon: WIX Filters - 24922 Heavy Duty Heater Kit. It looks identical to the picture in Leroy's store but I can't find anything confirming it is the same one. Does anyone know if this will work in the stock 6.5 FFM...

Leroy is out of stock on the heater for the FFM. I found this one on Amazon: WIX Filters - 24922 Heavy Duty Heater Kit. It looks identical to the picture in Leroy's store but I can't find anything confirming it is the same one. Does anyone know if this will work in the stock 6.5 FFM?

My truck intermittently started having erratic speedometer behavior, a flickering check gauges light, no gear selection light, and occasionally no tach. I thought my grounds were going bad again so I cleaned them up and checked voltage drop across them and they were good. After about 10,000...

My truck intermittently started having erratic speedometer behavior, a flickering check gauges light, no gear selection light, and occasionally no tach. I thought my grounds were going bad again so I cleaned them up and checked voltage drop across them and they were good. After about 10,000...

Yesterday I was towing an empty cargo trailer, about 1400 lbs, on nearly level ground at 65MPH and my EGT went right to the top of the green arc, 850°. When going up a hill I had to slow down and downshift to third to keep it there. Occasionally I let it go into the yellow arc to about 950° to...

Yesterday I changed the center section of my 20 year old GM4 turbo. The bearings were wearing out in the old one but it was still making good boost, 14PSI when climbing hills with EGT less than 800°F (pyro sensor in the down pipe after the turbo). Now I have screwed my TurboMaster to the end of...

I have a 1995 Suburban that is supposed to have 4 wheel ABS. My ABS light comes on shortly after I start moving. I replaced my front brake pads today so while I was at it I took the rotors off to see what the wheel speed sensors look like. Of course they were filthy with lots of tiny metal...

I just recently replaced the hoses and a couple of barbs on my Walbro lift pump, I couldn't keep the hoses from leaking on the barbs that came with the pump. The old beast is still running great but now it billows white smoke. There are no codes. I have shut off each cylinder with my TechII and...

Occasionally when trying to start my Suburban the glow plug light doesn't come on. No amount of cranking will start the motor either so I believe the fuel solenoid is still shut off. When I connect my Tech II it says it can not establish communications with the vehicle. I have tried swapping out...