1991 Chevrolet S10 Q&A
1991 Chevrolet S10 Question: temperature gauge not working
I just looked at a wiring diagram but it want's to know two door, four door, digital or standard instrument pack? - patrick mannion
Apparently there are TWO coolant temperature sensors on the 4.3L V6 engine. The Electrical Diagnostics manual refers to one... I chased my tail by diagnosing the wrong one! There may be one for the gauge and one for the "Check Guages" light. The guage sensor/sending unit is on the right-hand side of the engine. If you changed the one on the top front of the engine next to the thermostat, unfortunately, you changed the wrong one! (I spent days working on this one too!) To test the wiring and guage, simply disconnect the single green wire from the sending unit and using a straight pin to plug into the end of the plug, jump it to ground. Turn on the key and gauge should peg out at the top or hottest reading. This will tell you the wiring and guage is functioning properly. If you get the reading at the top, then replacing the sending unit (coolant temperature sensor) should correct your problem. If the gauge does not move off of cold when the green wire is jumped to ground, then either the wiring or the guage has a fault. - Visitor
My engine temperature gauge and fuel gauge are out and i cant figure out whats wrong. Also my battery light is on and the battery is fine. Can anyone help me?
my 2.8 v6 is ideling a bit high and the gauge does not work,does this eng. only use the one sensor for both? it is not over heating and i have great heat
It starts like a champion every day. And I have replaced the battery , both battery cables , spark plugs , spark plug wires , distributor cap and rotor , yet as soon as the motor is at normal opera...