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as above, a chemical reaction occurs with lucas and certain oil formulations, not all, under pressure to create excessive foaming and accelerated metal wear. not sure who would gamble on this. I only use quality synthetics in gear cases. always curious why auto$one pushes it so much. I did use...

simple issues are corroded/loose/dirty wiring plug on tranny, deteriorated wiring in pan, loss of ground. send me pm if you want pinout diagram better clarity with email. temp switch affects rpm, tcc apply. will have 12v @ tranny, ecm switches grnd

I know you probably have checked the grounds(you're no newbie), but sounds like ground/electrical issue. how about alternator voltage, pos,neg cables good as well as both batteries good.

Heathdiesel, kennedydiesel, other vendors here are good. several others referenced here that are great, which one you want depends on what part you are after. use search for problem or part to find who used what supplier. have personally had garbage parts from ss. many vendors sell, shall we...

I agree, clean and check everything. one note of major caution, if you do need a new alternator do not, DO NOT get one from autozone. I have gone through 4 "gold" series. bad bearings mainly, but others here have noted as I, as they warm up voltage goes to 12.8v. pour cold water on em and...

right now, my biggest question is what have you done with the pmd/fsd?? that is the biggest proactive maintenance item. I also would recommend an egt gauge, mine is in Heath's xover. btw, welcome, and how did u find this site?

I would not see any problem, as you are not restricting or diverting air away from intended intake areas. Nor would there be any reason to channel air to the radiator as your placement will not affect air pressure or flow near the center of the truck. it sounds like everything you want to do...

In my opinion, best sign of failed or failing OPS. unless something weird has happened to your engine, you need to check LP operation.

att will give a small percent improvement, major advantage in better flow, less back pressure. I really doubt its gonna give you substantial increase-definitely a good investment. what is status on injectors and pump.

what axle gear u set up with? 373? I went from 411 to 373, before 14 empty 12 tow, now 16 empty 10 tow. maybe spending $330 to go back to 411 this summer. have u cleaned intake, FTB mod, good LP? what mileage on injectors and pump? injectors can rob power and burn piston. I do not believe any...

sounds reasonable #'s. mine hits 14 max on hard hills for short periods. I would never go 20, for any reason, 6.5 stock not made for that sustained abuse. you sound good. should be about 3-4 cruise and average 7-10 STOCK. you OK. Heath is great setup, If you have the tools and know how, its...

oh yes, quite a few. great diagnostic software, can't beat the price- awesome monitoring options. simple, and great vendor.

prefer ffm up for access, inspection, service. seemed as though I was always fighting it when doing any top work, so I moved it. been there or over 2 years.

gm 8 on my 94, mod orig vac actuator-cut apart and used pieces. 1st pic mine, 2nd is pic another member actuator. wire welder, threaded rod, washer, works perfect. doesn't part store have hose??

only pulled fender, downpipe, line clips- x2 on leaving caps on. hardest part was removing hose clips on back injectors. I am no pro, but pm me if you would like a backup phone number

I believe my 94 has 2 off the intake stud- 1 to firewall and the other in the wiring harness. then the braided one off the frame

YES!! get the clampless hose-soooo much easier (vitrol?? I cant remember what the hose is called), I removed passenger fender well and everything was pretty easy. would love to help if you could get Oklahoma to swap state positions with ya. you got a 30mm deep well socket for the injectors?

any rust or excessive corrosion under truck. fuel lines /tank might be rotting -how she look under there.

checked and cleaned grounds? brake switches do go bad, however I would check connectors and shape they are in- 4 pin on motor and 15 pin on main. If you want to test stepper motor, go to pcm, find pink 24 pin connector, with release on left and 2 inset guides on right(iffy description) pin a1...

Bummer, I pulled some really good schematics off it.