Have a '94 C1500 with a 5.7 with electric fans. When they kick in voltage goes low. Have only a stock unit. What alternator would increase the output and not require any mods?
after looking at the photos it appears you have some type PCM either replacing the stock one or piggybacked to it, good luck and Find DaveW over at gearhead efi. He is great on this old stuff
I have a 94 GMC, the pcm is to the right inside the glove box. there is not an independent controller for the tyranny, stock anyway. the tunerpro is free on -line and the gm port to USB is available from moates as stated. that smaller white box to the left is the vss device
old wires can break. look for loose wire, battery grounds, sparkplug wires if not replaced, if it had been park critters may have worked on it. do a really close inspection of wiring looking for chewed, worn, rubbed areas. the fuel maybe a problem check for spray in the tbi. good luck
sounds like you have a problem when the engine goes into closed loop. check or replace the o2, map and vacuum lines. if there is a vacuum leak on the map, the ecm is not aware of the correct status
found this online MET-953000. It is a double din bezel and a/c vents needs cutting of the dash and painting to match but looks like it works. Got mine today but truck is still covered in snow. $30 bucks
here is a test I used years ago, take the dip stick out with oil on it and light it with a lighter. if it pops and snaps there is water present. it should burn with a smokey flame. good luck
Man, I could use a rust free driver side door from a RC 1994. But I think the shipping would kill me (to 05850, Vermont) just the door no glass or hardware
I used Dave w to tune my 1994 350 with big heads and cam. it took a while but it runs great now. he will tell you what you need to swap chips. He uses tunerPro RT Good luck
I installed dual fans on my 94 when we put a V-8 in it. we used the fan shroud cut down to mount the fans and radiator. read some where fans need a shroud to force the air through the radiator. also having the same alternator problem the stock one just does not hack it good luck
If this is the fuel pressure it is way too low should be 10-13 psi at all times. Are the fuel lines rusted? if so pin holes is a very good possiblity. Good Luck
This my 1994 GMC with 70k on it. It was my Dad's The original factory paint is raspberry with custom pin-striping and complete debadgeing. Just installed a SBC 355 with .030 over flat top aluminium pistons, edelbrock roller cam, aluminium heads with 200 cc runners 64 cc chambers 2.02 and 190...
Having just rebuilt a 350 with a new cam, pistons, lifters, heads, intake, tbi, and a bunch of other stuff, dropping 3 grand would be easy. Go for an engine swap, then build the old engine as time and money allows. Good luck