Here's an interesting problem
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Junior User
Joined: Jun 2004
Posts: 62
Likes: 0
From: North Dakota
Here's an interesting problem
I got in my truck this morning: right headlight out...try to use the right turn signal...doesn't work. Just for kicks I try my hazards...they don't work and the tach jumps up 300-400 rpms until I turn off the hazards. I stop to put on some fuel and while I'm sitting there I try the turn signal and it worked fine...so did the hazards (no tach jump). Any help on this one?...electrical short?...where might I start to look?
'92 F-250 4X4 7.3L NA
'92 F-250 4X4 7.3L NA
Elder User
Joined: Sep 2004
Posts: 577
Likes: 0
From: Peoria IL
I have wierd problems like that too. Sometimes my tach reads 300 rpms over but if I put on the parking break it goes back to normal. It will also go back to normal if I shut the climate control completely off. And sometimes the dash lights wont come on at all when I turn the lights on.
Im going to start checking grounds and look for worn wires.
Im going to start checking grounds and look for worn wires.
Lead Driver
Joined: Jul 2005
Posts: 5,967
Likes: 7
From: Eccles, WV
Dakota: Check the dash grounds. There should be one on each kick panel, two on the dash frame, one near the fuse box and one near the center (radio/heater cable) and maybe one traveling from the center to the firewall. Also check the ground under the hood on the firewall behind the master cylinder booster. That is one of the main grounds and it will work loose.
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BuckHammer
1994.5 - 1997 7.3L Power Stroke Diesel
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Mar 11, 2011 07:51 AM
