I have a 94 c1500. My problem is that the speedometer and tach go crazy and it burns out the turn signal fuse. Before this the brake wouldn't work so I replaced the turn signal switch, and got em working again, then this happened. Please help!
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Re: Speedometer turn signal short 94 c1500
First I would go back and check out the turn signal switch to make sure you install that correctly. Look for shorts or wires that could be grounding out. Go to the library and getting a wiring diagram and find out everything that goes to that fuse. Also if the truck is rusty check all the body grounds. Good luck.
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Disconnecting any sensor will cause a non working car to work suddenly.I would check two things. 1. The Transmission control module- vary rare issue. 2. the ignition control module. These break down a lot in Honda's. In the 96-98 model of the civic, the dash uses the tach built into the ignition control module. the 99-00 model doesn't use the ICM tach signal, but uses the same module. Test your ICM with a digital multi meter ($5 @ harbor frieght), before dropping $60- 140 on one.
I would say its probably a short or a ground problem at the turn switch or a wire in that area. you need a test light and probably a multi meater and some nohow a ground or wireing problem can even drive a master teck crasy.
i have a 2005 monte carlo 3.4 v6 auto with overdrive. i recently replaced the whole cluster because the tach and speedometer was reading crazy.i bought one at a salvage yard installed it and have had no problems for several months.now unfortunatly i am ee=xperiencing the speedometer dropping speed all of a sudden and then it will go to zero and not change at all.the only thing i can think of is the fact that i installed a set of 18 inch wheels and the same day my speedometer started the crazy stuff.so if you have the wrong size tires or wheels i assume that this is the problem.the computer is reading something wrong and the speedometer is responding to this.i hope i have helped you.
Try replacing light bulbs and flasher which may correct the turn signals. Check all fuses, however as for the speedometer, the plastic clogs or wheels have run their course, If you intend to replace these, suggest you purchase a repair manual for your vehicle.
Do the following:1)key in the ON position:remove the 7.5 gauge fuse.Tach needle should read "0:". 2)put it back,go on the engine and unplug the green plug on the igniter -the big one,with 5 or 6 wires on it.The needle on tach reading should be zero.If not you have a short circuit on the black wire between that plug and the plug on the conbination meter.3) If the reading is zero with the plug disconnected,the black wire for the tach is short-circuited inside the igniter. I have one available.email firstname.lastname@example.org
There are 2 sensors on the engine that sent a signal to the computor and speedometer and tach. When one of these goes bad it can make the speedometer and tach go all over the place and also just stop working. This can also cause all types of engine running problems because the information being sent to the PCM will be incorrect all so. The units are easy to replace once you find them, it seems that they are located in different areas of the engine with each year the vehicle was put out.