Expert
(800) 262-0795
Find awesome deals on a superior quality Discount...
Answer
heater fan for Chevy 1988 S-10 has gone out. I turned off fan shut off engine. When i came back to...
(More)
Problem for Chevrolet 1988 S-10
Have a 1988 s/10 blazer. came with a 2.8
By hotrod67cama on Oct 26, 2009
have a 1988 s/10 blazer. came with a 2.8 ENGINE.Swap it out to a 350. have 5 wires that went to the bottom driver side of the 2.8 motor that attached to two seperate oil sending units.The 350 has a manual oil guage but one sending plug has a 3 prongs and the other two . cant get power to the fuel pump. traced one wire to the fuel pump. one wire stays hot all the time.the other wire works with the switch and only carries about 8 volts,the other two cant figure out. does all wires circle in cycle.need power .
Solution #1
posted on Oct 27, 2009
Bypass the whole system and wire the relay for the fuel pump straight to an igintion on sorce.
Gm made that system so the fuel pump would shut down if oil pressure was lost, to try and save an engine!
Sounds like a neat project, what engine did you put into the truck. If it's a fuel injected engine the fuel pump for the old 2.8 may not have enough for it. you may end up needing a inline pump like you can buy at all of the "performance" web sites. Also if it's a carb engine then the pump may be to much, and keep unseating the seats! These are just thoughts going through my head, you may have already thought this through?
Good luck with the project, it will be a tire burning SOB. Oh and be careful with that little 7.25" rear end that was in there from the factory, they break with just a 4.3 and you are adding a couple more HP to the mix!
Gm made that system so the fuel pump would shut down if oil pressure was lost, to try and save an engine!
Sounds like a neat project, what engine did you put into the truck. If it's a fuel injected engine the fuel pump for the old 2.8 may not have enough for it. you may end up needing a inline pump like you can buy at all of the "performance" web sites. Also if it's a carb engine then the pump may be to much, and keep unseating the seats! These are just thoughts going through my head, you may have already thought this through?
Good luck with the project, it will be a tire burning SOB. Oh and be careful with that little 7.25" rear end that was in there from the factory, they break with just a 4.3 and you are adding a couple more HP to the mix!
Yes
No
Popular Solutions for 1988 Chevrolet S-10
Questions and Unsolved Problems for 1988 Chevrolet S-10
Do you recommend Chevrolet 1988 S-10?
Answer
Answer
the fuse just keeps blowing and the truck just dies. I dont know what the problem is. sometimes it...
(More)
Answer
Have fuel to injectors but injectors will not spray. It has 11.9 voltage going to injectors. The...
(More)
Answer
1988 2.5 intermitant runnibilty problem, acts like its running out of fuel but fuel pressure does...
(More)
Answer
1988 s 10 2.5 I start the engine in the morning or after 3 to 4 hours of sitting. It idles fine and...
(More)
Ask our Experts
Browse popular Problems
More Common Problems
Most Common Problems for:
For 1988 Chevrolet S-10:
Related Products & Issues:
Top Car Experts
Experience:
40 years of automotive repair work, home appliance repair experience and general electrical repair.
Ask Me
Top Car Repair
Best Chevrolets
Recommended by Owners
Recommended by Owners
