Help!!! Gauge install gone wrong
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Senior User
Joined: Nov 2005
Posts: 236
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From: Texas
Help!!! Gauge install gone wrong
I have no power anywhere, ie lights wont turn on, gauge cluster doesn't light up, nothing works. Before u ask yes i did disconnect the batteries before i started and yes i did reconnect them when i tried to turn things on. is there a fuse or a relay that i can check/replace....or did i fry something much more important.....?
Senior User
Joined: May 2007
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what did you tap for power? did you use a check light? for switch power or constant? you may have tapped a switch power source which means for your gauges to work, that accesory must be on. make sure you have a power source that uses ignition as your on and off. how about ground?
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Senior User
Joined: Nov 2005
Posts: 236
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From: Texas
i used the plug under the dash with the red wire with yellow trace like every set instruction ive found said to. the gauges worked at first but the egt wasn't responding, it lit up but didn't register temp. So the only wire i found to be completely different between the boost egt gauge was the ignition power source. I disconnected the batteries, and went to change the power source to #29 10amp mini-fuse in the fuse panel. when i reconnected the drivers side battery nothing worked, not the gauges not the gauge cluster, not the lights, nothing. tried reconnecting the other batt and just for a sec the gauges lit up but then went blank and now nothing works.
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Senior User
Joined: Nov 2005
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From: Texas
just went out side and tightened the cables on the batt, turned the key and the main gauge cluster lit up for a sec then died.......
Of the next Riffraff East
Joined: Oct 2004
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From: Concord NC
Sounds like you have some dead batteries or a bad connection somewhere. A bad fuse would be bad until you fix it, not come and go. Double check those connections, on both batteries.
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Senior User
Joined: Nov 2005
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From: Texas
Ok i went out and brushed the terminals till they shined and the truck now starts and everything works........that is except my egt gauge. I can see it flick like its reseting itself when i turn things on but it will stay just below 100 degrees and won't change. so im starting to wonder if i have a bad sender.
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Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
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From: Concord NC
Could be a bad sender, Make sure the the lead wire coming from the probe is not touching something. Where did you mount the probe? If it is a clamp on type, I think in needs to be grounded.
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Thread Starter
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Senior User
Joined: Nov 2005
Posts: 236
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From: Texas
ok made a seperate ground wire, checked the grounds to make sure they worked, checked the power to make sure it works, checked to see if there were any kinks in the line, and everything works and seems fine except for my gauge won't read the temp......i even tried moving the sensor in and out of the hole but it had no effect.
Can anyone help me with this?
Can anyone help me with this?
Cargo Master
Joined: Jan 2001
Posts: 2,726
Likes: 5
From: Slatington, PA
Did you use an extension wire to hook the egt sensor to the sending unit? If you do, take the probe out and hook it up directly to the sending unit. You can give it a quick test with a lighter before you put it back in the manifold. The one I got with my gauge was bad (one wire had 2 ohms resistance) and kept the gauge from reading anything.
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
ok made a seperate ground wire, checked the grounds to make sure they worked, checked the power to make sure it works, checked to see if there were any kinks in the line, and everything works and seems fine except for my gauge won't read the temp......i even tried moving the sensor in and out of the hole but it had no effect.
Can anyone help me with this?
Can anyone help me with this?
Cargo Master
Joined: Jan 2001
Posts: 2,726
Likes: 5
From: Slatington, PA
EGT's should move right after startup. My gauge reads about 150-200 within 30 seconds of starting.