electrical question / help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

landon4421 · 04-15-2003, 10:32 AM

So here is the problum. I started out with a left turn signal that did not work, and the dash lights that would not work. I stated to look around at all the bulbs. they were fine. The I looked at the fuses, the only one that was blown was the one for the dash lights. So I went and replaced it, this is were it gets fun. "POP" the fuse blows out. So I was looking around here and some one suggested to ground the dash, so I did that, but when I pulled the dash out to look at it the printed circut was a little messed up. So I figured fix it. Got the new one and put it on the dash. Now that eveything is put back togeather, I am still having the same problum as be for. the driverside blinker dosn't work, the dash lights still don't work, and now the fuel gauge dose not work. I would like to drive the truck off a cliff, but that would make the wife mad.

So here I am again asking for some help please.

The driver side blinker dose not work,
The dash lights dose not work,
The fuel gauge dose not work,
All the bulbs are good, could not find any damaged wires.

NOTE: where the wire plugs into the harness for the fuel tank sending unit, dose that plug show power when you put a tester on it? If so mine has no power runing to it.

hopefully someone can help

if not I will be looking for that cliff

cdowns · 04-15-2003, 12:46 PM

well if you're popping fuses that means you have a short circuit: places to check would be :theharness ror the rear lights that runs along the drivers side frame rail, second would be the wiring to the dimmer switch, third the wiring under the chrome step plate by the drivers side rocker panel, you must also make sure you have good grounds all the way around the truck because a bad ground will also blow fuses

HotRod929 · 04-15-2003, 12:55 PM

Check your grounds. If you have check them again. Grounds are so important and they can be so annoying to fix.

HotROd

Blue Beard · 04-15-2003, 02:32 PM

Similar problem turned out to be the positive cable grounding out on the block.

bpmcgee · 04-15-2003, 03:59 PM

Landon,

I was having a problem with my guages similar to the one you describe. I also had a short circuit on the circuit board.

Here's the part that may interest you -- I found this while was diagnosing a blown fuse in the front lighting harness!

Turns out there's a little rubber inline fuse socket tucked by the battery. It's got a little 4A fuse in it. Is it possible that you may have blown this?

landon4421 · 04-16-2003, 12:11 PM

anyone else have any ideas?

O'l Buck · 04-16-2003, 12:53 PM

The tail lights, dash lights and dome light are all on the same fuse, I'd definitely be looking at the tail light harness. They have a tendency to rub through on the frame. Also a loose tail light bulb can do this too, but normally they would only do that while driving because the vibration causes it to arc and draw more amps.

landon4421 · 04-16-2003, 04:22 PM

OK but no one has answered the question about the fuel sending unit. Dose that plug have power or not?

04-15-2003, 10:32 AM	#1
landon4421 Life is Good ! Join Date: Mar 2002 Location: Hollister, Ca. Posts: 1,992	electrical question / help So here is the problum. I started out with a left turn signal that did not work, and the dash lights that would not work. I stated to look around at all the bulbs. they were fine. The I looked at the fuses, the only one that was blown was the one for the dash lights. So I went and replaced it, this is were it gets fun. "POP" the fuse blows out. So I was looking around here and some one suggested to ground the dash, so I did that, but when I pulled the dash out to look at it the printed circut was a little messed up. So I figured fix it. Got the new one and put it on the dash. Now that eveything is put back togeather, I am still having the same problum as be for. the driverside blinker dosn't work, the dash lights still don't work, and now the fuel gauge dose not work. I would like to drive the truck off a cliff, but that would make the wife mad. So here I am again asking for some help please. The driver side blinker dose not work, The dash lights dose not work, The fuel gauge dose not work, All the bulbs are good, could not find any damaged wires. NOTE: where the wire plugs into the harness for the fuel tank sending unit, dose that plug show power when you put a tester on it? If so mine has no power runing to it. hopefully someone can help if not I will be looking for that cliff __________________ '72 Chevy C10 4x4 shortbed "Project" '71 Chevy C10 2wd longbed "partsrunner" '91 Chevy Burb 4x4 "kidrunner" '14 Honda Accord Sport "commuter"

04-15-2003, 12:46 PM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	well if you're popping fuses that means you have a short circuit: places to check would be :theharness ror the rear lights that runs along the drivers side frame rail, second would be the wiring to the dimmer switch, third the wiring under the chrome step plate by the drivers side rocker panel, you must also make sure you have good grounds all the way around the truck because a bad ground will also blow fuses __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

04-15-2003, 12:55 PM	#3
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	Check your grounds. If you have check them again. Grounds are so important and they can be so annoying to fix. HotROd __________________ 1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/

04-15-2003, 02:32 PM	#4
Blue Beard Registered User Join Date: Jan 2003 Location: Washington State Posts: 8,834	Similar problem turned out to be the positive cable grounding out on the block. __________________ 1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo

04-16-2003, 12:11 PM	#6
landon4421 Life is Good ! Join Date: Mar 2002 Location: Hollister, Ca. Posts: 1,992	anyone else have any ideas? __________________ '72 Chevy C10 4x4 shortbed "Project" '71 Chevy C10 2wd longbed "partsrunner" '91 Chevy Burb 4x4 "kidrunner" '14 Honda Accord Sport "commuter"

04-15-2003, 03:59 PM	#5
bpmcgee Registered User Join Date: Mar 2003 Location: Northern Illinois Posts: 2,181	Landon, I was having a problem with my guages similar to the one you describe. I also had a short circuit on the circuit board. Here's the part that may interest you -- I found this while was diagnosing a blown fuse in the front lighting harness! Turns out there's a little rubber inline fuse socket tucked by the battery. It's got a little 4A fuse in it. Is it possible that you may have blown this?

04-16-2003, 12:53 PM	#7
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	The tail lights, dash lights and dome light are all on the same fuse, I'd definitely be looking at the tail light harness. They have a tendency to rub through on the frame. Also a loose tail light bulb can do this too, but normally they would only do that while driving because the vibration causes it to arc and draw more amps. __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

04-16-2003, 04:22 PM	#8
landon4421 Life is Good ! Join Date: Mar 2002 Location: Hollister, Ca. Posts: 1,992	OK but no one has answered the question about the fuel sending unit. Dose that plug have power or not? __________________ '72 Chevy C10 4x4 shortbed "Project" '71 Chevy C10 2wd longbed "partsrunner" '91 Chevy Burb 4x4 "kidrunner" '14 Honda Accord Sport "commuter"



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.