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my guess is that since you hit a bump in the road that its possible that a plug has come loose from the back of the dash.. remove instrument cluster and inspect for loose or broken wiring and connectors..
Hi there: You will have to pinpoint what the engine is missing... - Spark - Fuel - Compression
All three of these are tested when the engine is being cranked over. There are two way of checking for fuel. Fuel pressure and fuel trigger. Both are very important and must be present for the engine to start. Fuel pressure is self explanatory. You just hook up the gage and see what the reading is. Fuel trigger is check with a noid light. The injector gets unplugged and the noid light gets plugged in to the injector clip. With the engine cranking over, this light must blink. This is the signal to the injectors from the computer. You can have all the fuel pressure in the world, but it wont matter if the injector is not pulsing gas into the cylinder like it should.
Compression tester, spark tester, fuel pressure gage and noid light are all accessible at your local auto store. All three tests play a very important part in diagnosing a no start condition. Be extremely careful when doing these tests.
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You will have to pinpoint what the engine is missing... - Spark - Fuel - Compression
All three of these are tested when the engine is being cranked over. There are two way of checking for fuel. Fuel pressure and fuel trigger. Both are very important and must be present for the engine to start. Fuel pressure is self explanatory. You just hook up the gage and see what the reading is. Fuel trigger is check with a noid light. The injector gets unplugged and the noid light gets plugged in to the injector clip. With the engine cranking over, this light must blink. This is the signal to the injectors from the computer. You can have all the fuel pressure in the world, but it wont matter if the injector is not pulsing gas into the cylinder like it should.
Compression tester, spark tester, fuel pressure gage and noid light are all accessible at your local auto store. All three tests play a very important part in diagnosing a no start condition. Be extremely careful when doing these tests.
You will have to pinpoint what the engine is missing... - Spark - Fuel - Compression
All three of these are tested when the engine is being cranked over. There are two way of checking for fuel. Fuel pressure and fuel trigger. Both are very important and must be present for the engine to start. Fuel pressure is self explanatory. You just hook up the gage and see what the reading is. Fuel trigger is check with a noid light. The injector gets unplugged and the noid light gets plugged in to the injector clip. With the engine cranking over, this light must blink. This is the signal to the injectors from the computer. You can have all the fuel pressure in the world, but it wont matter if the injector is not pulsing gas into the cylinder like it should.
Compression tester, spark tester, fuel pressure gage and noid light are all accessible at your local auto store. All three tests play a very important part in diagnosing a no start condition. Be extremely careful when doing these tests.
Hello, the gas gage problem is caused by a defective gas gage sending unit, the sending unit is only sold as the entire Assembly which is called the fuel pump module, that said the gas gage problem is not related to the check/service engine light issue, that is an indication of a problem in the electronic engine control system or emission control system, when this light is on a fault code is put into the memory of the computer called the PCM, to retrieve this code requires a test be run called the OBD2 fault code test, this is done through the diagnostic connector that is in front of the steering wheel and under the dash, a code reader is needed, you can also get the code read for free by most discount auto parts stores like Kragen or Autozone.
Most of the time the gauge unit in the tank goes bad but turning the key on and off won't make any difference. Near the tank there is a multi wire electrical connector, With it unplugged and the key on probing the wires to the front of the truck with a test light one of the wires will light in a slow blinking, This is the gas gauge. with the light blinking the gauge should read something. un plugged should read empty and cross the light to ground it should read full. If the light doesnt come on your on the way back to the dash the wire could be in troble anywhere. repairs for other things are ussally the cause. If the test light check worked then the sending unit in the tank is bad and it will need to be replaced. Repairing them doesn't seem to stay fixed. A gas theif may have run into it with a hose and they can't take much banging around. The fuel gage and fuses are next. The temperture gauge works on the same power if it works OK the power is good. Then its the gage or the wire the is a voltage limiter card in a slot next to the gage in the cluster . The dealer can order a new one when you call them with the VIN and tell them you want the fuel gauge limiter module. If you have the skills to remove the cluster and see the module 1 in. X 2 in. flat electrical card. It has a part # on it and the dealer can verify that your looking at the right part. the gages seldom fail unless their submerised in water. Har driving can sometines loosen the connections to the cluster and redoing them and turning it on again, may correct thr problem. do this with the card and the gage too before you but anything, check the wire from the gage module maks it all the way to the gas tank with a jumper wire and a test light as the wire being broken somethere is most common.
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