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Chicagodiesel, I was unable to find a part number for the cold advance solenoid, also know as the HPCA. I checked all local stores and no one had it. I finally found it on ebay. Search "6.2 HPCA" and you will see one for sale by accuratediesel. It comes with a new ip cover gasket as well...

So I ended up removing the tank and there was all sorts of rust in it. I used some laquor thinner, old diesel, and acetone to clean it out. I was able to get most of the rust out but there was still some residue (when I wiped the inside of the tank with with a cloth it came up with...

I changed the filter once and some green and dark red gunk came out. I haven't check this one since I put it on about 2 months ago. It's interesting that you mention the tank because I only noticed the problem when I got done trail riding and rock crawling and sloshed the insides of the tank...

So I changed out the cold advance solenoid (HPCA) in the injector pump. Turns out mine was not working at all. I also sightglassed the line going from the fuel filter housing to the injector pump. I drove the truck maybe 2 miles and then at around 35 mph it was sputtering and would not go...

UPDATE: Replaced the mechanical LP fuel pump on the block - same problem Replaced the fuel return line coming from the injector pump check valve which had cracks - same problem Looked at my fast idle solenoid and found that it was completely shot. When I take it off and apply power to it...

By sightglass it you mean to put clear lines coming from the mechanical fuel pump to the IP and a clear return fuel line and see if there are any air bubbles? To play with the advance do I have to tear into the area where it attaches to the injector pump or just push and pull it in and out a...

I suspect my M1008 may have a bad injector pump and wanted to see if anyone here can confirm it. The symptoms are as follows: When I am cruising on the freeway at about 2650 rpm, the truck will suddenly not be able to accelerate or maintain speed. It feels like I have taken my foot off the...