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Posted on Sep 28, 2017

Temp gauge/Tach gauge question

2006 Camry 92,000 miles. With engine on, temp gauge pegs out on "H", and tachometer appears to function normally. When engine is turned off, Temp gauge falls back immediately to midway, and tach stays at 1400 RPM. I've got it sitting off to "cool down" but it didn't look like it was actually overheating. It had coolant in the reservoir, no fluid leaks, etc.

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jim shrops

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  • Posted on Sep 28, 2017
jim shrops
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Make sure your battery is charged fully and the terminals are very clean. Get a free stress test at a parts store. If you have a charger, connect it up and see if that solves the problem. Voltage levels that might allow the car to start and run fine may be low enough to cause electronics problems with radios, gauges and locking mechanisms.

5 Related Answers

Anonymous

  • 46 Answers
  • Posted on Aug 30, 2008

SOURCE: speedometer and tach

With the key in the off posistion press and hold the trip odometer reset button, the lights in the cluster will start to flash and the guages will do a self test. This should take care of your problem.

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Anonymous

  • 324 Answers
  • Posted on Nov 26, 2008

SOURCE: tachometer gauge

your relay is going bad, replace it.

Big Poppa Ma

Big Poppa Marv

  • 302 Answers
  • Posted on Dec 08, 2008

SOURCE: 2000 Toyota Celica coolant reservior empty

I hate to tell you this but its possible...

You have a leak. Look around on the driveway and try to determine if you have an external leak as opposed to an internal leak. If you see no coolant on the ground, suspect a blown head gasket. Do not continue to drive this car in this condition. If it does indeed have a blown head gasket, serious engine damage will occur.

Check your exhaust for white smoke. Chances are good you have a blown head gasket and coolant is leaking into the engines combustion chambers and is essentially burning off. Also check your oil, if it looks like caf mocha, this will confirm coolant is leaking into the oil via the blown head gasket

Anonymous

  • 43 Answers
  • Posted on Jan 07, 2009

SOURCE: 1994 camry overheating

water pump could be on its way out.

Anonymous

  • 585 Answers
  • Posted on May 08, 2009

SOURCE: Install aftermarket tachometer

I'll take a stab at this, there's better than a 50-50 chance, and you can do no damage if the first try is wrong. Red is +12 volts and Black is chassis ground. that's a given. I would try Blue to coil pack "Tach" terminal, and Green for the dashlight. If I am right about the Blue and Green, a 9-volt battery from Green to Black will light the light if it's not burned out. If the Green doesn't light it, try the Blue, but my bets on the Green. If the Blue doesn't light it either, the bulb is toast.

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Where can i find the rpm sensor on a 2001 ford ranger

There is no tach - rpm sensor . This information comes from the PCM - engine computer .
Tachometer
The tachometer is a 6,000 rpm tachometer. It has four terminals labeled "B" (12 to 14.5V), "S" (EDIS tach signal in), and two "G" (cylinder selection grounds). The top ground (G) terminal is open on a 4-cylinder engine vehicle, and is grounded on a 6-cylinder engine vehicle.

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No REPAIR the circuit. TEST the system for normal operation.
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Connect all PCM connectors and make sure they seat correctly. Operate the system and verify the concern is still present.
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No The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
Your best bet mite be to take it to a qualified repair shop.
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