I just got my car back from the tranny shop and none of my gauges are working. My tach is all the way up, my spedo is at 80 mph., my oil pressure and volt gauges are both all the way down, and my temp gaue is all the way up. Does anyone know what could have caused this. I need an idea because i'm taking the owner of the shop to court over this. Thanks.

 

might not have be connected

 

Everything's connected. I got them to work after i changed the fuse but after a few minutes of driving the fuse blows and I lose the gauges again. I'm just looking for what wire is shorting out that might cause this.

 

isolated you have, good this is.

 

I've had a stereo system blew guage fueses before. After a bit the system fried because aparently the + and - wires that were on the back of the speaker's cone touched and fused together. After getting rid of that system I had no problems.

A combination of high watt speakers with a low watt amp caused sparatic electrical events with my tac and other electrical componets that helped keep the engine running. The guages would shut off and turn back on then blow a fuse. This was with a legacy amp with two audio bauns. I used a different amp and the same wireing techniques and had no problems.

These problems may have no direct reference to yours and could have been an effect of me trying to push an amp beyond its limits but... get a multimeter and test wires for proper voltage that may have been pinched or disturbed during the events that happen after the guages stopped working. Maybe even take your car back to the shop you just went to and point the finger at them.

 

Thanks for the ideas. I never heard of anything like that happening because of a stereo but if they're not hooked up right or not working properly I could believe it. I actually work in a stereo shop installing stereos so I'm pretty sure I'm ok there. The problem just started after I got my car back. I'm just trying to pinpoint the wire that may be shorting out that sends voltage from the battery to the gauge fuse. If anyone knows what wire it is please let me know. I think it's a pink and black wire but I'm not sure.

 

Unplug the torque converter clutch connector at the transmission.

 

OK. Then what?

 

here's whats going on and needs to happen partner. You have a circuit on there thats is causing too much flow for that fuse. and you either need to have the tranny shop move the wire that they moved there or have someone create an entirely new circuit for what was added on new fuse and all cause that sounds like whats happening. and i know this stuff i'm saying sounds text book but it HELPs. peace and good luck bubb.

 

Then see if the fuse still blows.

The TCC solenoid takes power from the gauge fuse. It's probably blowing when the TCC locks up, which would make sense if it started after you had it at a transmission shop.

 

thank you thank you thank you

i have that problem in my grand am, randomly, i will get a horrible staticy noise, the the speedo with go nucking futs, guess what kind of amp i have? thats right, legacy, learned my lesson with that pile of ****, time to find another 4 channel

 

What else takes power from the gauge fuse? I'm trying anything I can here. Last night the gauges worked all night after putting a new fuse in but today they went out as soon as I left my driveway. That's what makes me think it's a short in the wiring.

 

I know it's been a while but I have an update on my problem. I went over all the wires for the gauge fuse circuit and they're all fine. After that I unplugged the TCC solenoid plug and now my gauges are fine. What should I do? Tell the tranny shop to replace the solenoid? Will it hurt anything running with it unplugged? I'm usually pretty good with figuring things out but I'm not the best with transmissions. If anyone knows what I should do I thank you ahead of time. And thanks to all who already replied to my post.

 

What exactly did the shop do to your transmission?

 

I got a full rebuild done. Kevlar bands, Corvette servo, shift kit, heavy duty torque converter... It runs great and shifts perfect now but if I leave the TCC solenoid plugged in it blows the gauge fuse.

 

Run the power from the TCC off of eithere the battery as a seperate circuit or another circuit that has a bigger fuse.

 

What good would that do?

They've done something to short the TCC circuit in the transmission. I'd try getting them to fix it.

 

the reason why its blowing the fuse is because it is pulling too many amps through that fuse and circuit that is running though the gauges and TCC. so by either creating a new circuit you don't have to worry about blowing a fuse on the gauge circuit.

 

No, you'll just blow a different fuse or start a fire. Doesn't accomplish anything at all.

The gauge fuse can handle more than enough current to power a correctly wired TCC circuit. His fuse blowing is an indication that there's something wrong with the circuit, probably a short, not that GM didn't use a large enough fuse to handle the current.

 

To clear this up a little the gauge fuse was a 10 amp. I put a 40 amp fuse in just to test the circuit for a short. Trust me, I know quite a bit about wiring and electronics. If a 40 amp fuse is blowing when the circuit only requires a 10 amp fuse something's seriously wrong. My main concern is the fact that I'm driving with this unplugged and I don't know if that will hurt anything. I know I have to take it back to the tranny shop and I know they should fix it. Being as I don't klnow much about transmissions I was hoping to see if anyone could explain some things to me so I don't look like a fool when I walk in there. If nobody has anything else to say we can just close this thread and call it a day. Thanks for all the advice anyway.

 

Driving with the connector unplugged will reduce your mileage, and will increase the transmission temperature while cruising in O/D.

 

Thank you. I'm going to get it checked out today.

 

Since it seems that they caused whatever the problem is, they should fix it. Don't worry if they won't play though, it's not that complicated to fix it yourself.

 

Friday morning at 9:30am. They're fixing it for free. Thanks everyone.