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Coolant flush on the LMM
I have been aviation maintenance my whole life (36 years and counting), done engine rebuilds on cars and motorcycles. Not afraid to tackle most things as long as you don't need a bunch of specialized tools to do it. I'll never say that I have seen it all and know it all, I learn something new... -
Coolant flush on the LMM
I was able to reach out to a dealership parts guy that was super helpful. He is the one that told me that this was sold as a fitting. He also had references to NAPA parts that showed two different units. a NOE 7305635 and a NHD 73051091 with both referencing the GM number 15797464. When I... -
Coolant flush on the LMM
I thought about that and would not have problems if the o ring was in a compression type of application. Being a slip fitting and the fact that the old seals are deformed from age I thought this would be the safer route. I hate to have to go back and redo things because something started... -
Coolant flush on the LMM
I was able to take to a GM parts guy. It appears that the only sell the fitting as a unit. What he gave me was 15797464. Looks like NAPA has a equivalent available for much cheaper. I would really just like to do the o ring but looks like that is not going to happen. Dean -
Coolant flush on the LMM
I need to find the part number of the o rings for the tranny cooler. On the diagram it is the #4 part. Dean -
Coolant flush on the LMM
Look at all the crap on the driveway from cleaning out the radiator! WOW. D -
Coolant flush on the LMM
Well I was able to get enough off to pull the radiator back a bit and yes it certainly is dirty as @JoshH said it would be. I'm trying to get the radiator out and I am down to these last fittings. I thought they were for the heater but following the lines it appears these are for the tranny... -
Coolant flush on the LMM
Well I was going to use the day tomorrow to replace the thermostats and flush the coolant system. I drove the truck to work today and as soon as I got home I popped the hood and looked at the surge tank coolant level and it was above the full mark. With the engine still hot I very carefully... -
Battery Issues
I had a similar issue. These were the Wamart Everstart batteries. Normally I have pretty good luck with them. This time after about 3 years I was seeing the same thing. Charging voltage was fine and no parasitic draw that I could find. At that point I disconnected both batteries once I got...- Dean E
- Post #8
- Forum: Duramax Hard Parts
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Coolant flush on the LMM
Considering the trans cooler and intercooler completely covers the front of the radiator I'm not sure how blockage could be in front of it. Don't get me wrong, there were plenty of bugs in front of both the cooler and intercooler that have been cleaned off. Once again if there was that kind of... -
Coolant flush on the LMM
I replaced the coolant when I did the thermostat about 3 years ago. Even then the fluid had a good orange tint to it. This time I'll make sure to drain everything and look at removing the radiator to try to flush it out. Just can't see it being the fan since I don't see any issues in town or... -
Coolant flush on the LMM
What is in the res tank looks very clean. You thinking a possible head gasket issue? D -
Coolant flush on the LMM
Yeah now that the mornings are getting a bit cooler I see my temps cycling once warm and it is getting a bit cooler than it used to. Pretty sure my thermostat is acting up. It is only about 3 years old. Gives me an excuse to get in there and do a full flush on the system. Thanks, Dean -
Coolant flush on the LMM
Well I was seeing some issues with my last trips pulling my enclosed trailer with the temp creeping up at higher speeds when climbing up bigger hills out west and I have done a through cleaning of all the bugs up front from the tranny cooler, AC condenser, and such. I think my thermostat might... -
Engine temp started to climb during last trip
You may have something there. I have a Gearbox Z tune with a 70 hp option that the engine does have. If I was towing a really heavy load I would that that tune off but this was just a hot day with just the drag of the enclosed trailer. I’m sure taking the 70 hp tune off would have changed the... -
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Engine temp started to climb during last trip
I would not think a fan clutch would be doing much at 75 mph. The fan would be a definite player at issues around town or in traffic at lower speeds. As I got closer to Nebraska the outside temp lowered to 92. I tried going 75mph again and had no further issues. I was thinking I just pushing... -
Engine temp started to climb during last trip
Been a while since I posted anything here but I wanted to get some input from my last trip with my LMM. I was pulling my enclosed 7x12ft trailer with my bike inside. No real weight but the enclosed trailer pulls like you are dragging a 15ft parachute behind you. I was in the middle of a 900... -
Lift pump and fuel filter delete
I have an older FASS 95 unit. It has been rock solid but about a couple years ago I started getting pressure fluxuations. I know this because I put a low pressure switch in the filter delete housing kit that I also got. My pressure switch was set for about 4 psi. At idle the pressure switch...- Dean E
- Post #19
- Forum: General Fuel System & Exhaust Questions