The comes on after the engine light comes on and when the gauge start working the light goes off but, it still isn't working correcty. should i change the speed sensor. and ho can i put the impala speed gauge in my car without the changing the whole dashboard
The speedometer in the dash operates off of an electrical signal that it receives from a sensor that is attached to the transmission. There is either a bad connection at the sensor or the sensor is bad. You should not need to disturb the dashboard.
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ABS and Brake warning lights intermittent may be caused by a failing wheel speed sensor(ABS Sensor) and /or its connector. You may have one on each wheel hub(4WD) or if 2WD, a sensor may be on the rear axle differential center.
well yes but no,the speedometer signal comes from speed sensor in the transmission then goes through the ecm/pcm via the tcm (transmission control module, then on to your speedo,if the speed sensor goes bad usually the speedometer will work crazy if not at all also the instument clusters also go bad causing failure too find a new tech dude
I've been working a similar issue with a friends truck. When the heater blower motor is off the engine temperature gauge reads normal in the middle. But when you turn the blower motor on the gauge goes way up to the top. The engine isn't really overheating. There is an electrical problem that when you turn the blower on it is affecting the temperature gauge and making it go all the way up off-scale. So far we've found that the blower motor speed control resistor is bad. We replaced that and the speed control works now, except for the low speed setting. I suspect there is a bad ground somewhere and the bottom end of the resistor element isn't grounded anymore. As such too much current is going through the ground in the dash, which is affecting the gauge.
Don't know what the "whirring" is, but you NEED to find it. The only reason your temp. goes down at higher speed, is cuz more air is rushing past your car, cooling the engine and radiator. Careful you don't burn up the engine! Find the cause of the overheating, probably related to the sound you hear, or caused by overheating, even maybe causing the overheating. Take your time and work on it or have it serviced. Start by checking your coolant level. Good luck.
Does the engine over heat or the gauge goes to hot. Really hot. Since the A/C is on , this puts an extra load on the engine. This is why the fans come on when the A/C is turned on. This is usually low speed fan mode. High speed doesn't come on untilll 220 to 230 degrees. Most vehicles. Cars don't over heat untill the gauge gets in the red, when it starts getting close is time to worry and stop. I guess the question to you would be, What does the temp gauge read?
The correct way of checking this is to put a mechanical test gauge on the engine and check the actual oil pressure. (your gauge is electro mechanical and it could have a "dead spot" in it.) However, if you don't have a test gauge, buying one or having a shop test it will cost you far more than the actual sending unit would. Therefore, providing that the engine isn't knocking or tapping while the gauge reads "0" ( which would indicate that the pressure was indeed low) I'd suggest that you replace the sending unit and see if it corrects the problem. The unit generally costs around $25.