|
12-29-2013, 08:09 PM
|
#1 |
|
Registered User
 
Join Date: Apr 2013
Location: Gainesville, TEXAS
Posts: 658
|
93 s-15 voltage issue
Ok I've done some searching on this part of the forum and haven't found any threads that fit my issue.
1993 S-15 jimmy one owner, with only 107,000+ miles. I've been the primary mechanic/maintainer of it. I started out with a SES light coming on and hard starting issues and then no starting issues concurrently. I had it checked out and it was code 54 low fuel pump voltage. I checked what I could and determined that it may be the fuel pump. So I replaced it and starting is better most times, (once in a while a little slow to start, and an occasional SES light) I checked the fuel pump relay and it is working. So now I'm down to occasional slow to start issues, and now the volt gauge is fluctuating from 14v+ at speed to a low of 6v-7v at idle. (this may have been going on before, IDK, I'm not the driver of it) I had the alternator checked and it is good. It was a new GM replacement on 5-11-2000 (possibly 27,000 miles or less). Yeah it's now an older alternator but really minimal mileage. So any ideas? I've read through trouble shooting charts and can't really nail down any specific scenarios.
__________________
1972 Chevrolet Cheyenne LB 1/2 ton finished restoration/rebuild 1995 350 throttle body FI, 4L6E (running on modified GM wiring harness) 3.08 posi rearend, factory A/C on 134A, p/s, p/b, late 70's power windows and locks and cruise, speakers in the dash + 6x9's behind the seat, factory tilt, 40 gallon fuel tank in the bed with integrated tool box, air assist bags on the rearend, sway bar up front and much more. 1972 chevrolet SNB finished 2002, 350 TB FI, TH400, factory A/C, p/b, p/s, (FOR SALE) 1969 Chevrolet 1 ton in work, home made PTO dump bed extended frame, 350 CI , 1972 Chevrolet 3/4 ton suburban future project 1972 Chevrolet 3/4 ton p/u maybe a project one day 1966 Toyota Landcruiser my playtoy |
|
|
| Bookmarks |
|
|
Threaded Mode