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Re: 1997 exploder back fires and dosent go over 25mph
Check the fuel pressure, the problem will not be with the press regulator, most likely the fuel pressure is low, also you may have an issue with the MAF sensor. Have you run the test for trouble codes? if not go to a Kragen and have them run the test, it is free, other parts stores do the test for free as well.
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Sounds to me if its a rotten egg kind of smell I would be looking at the catalytic converter. If its a fuel smell I would be looking for a possible external leak . You can do this by setting the emergency brake vehicle in park and rotate the key to the on position. You will hear a hum as the fuel pump kicks in, follow your fuel lines from the tank to the manifold. You may have to cycle the key every few minutes cause the pump will not run continuously. Genarally with a stuck injector you would get an engine light either because of a miss fire code an emmision code for runnig to rich. If no engine light focus on external leak.
Back fire back to where, the intake or exhaust. intake backfire is a pop sound, not too loud, and is bad timing. exh backfire means, fuel plus air is in the exh. and explodes with a loud report , we call it muffler explosing to help with clear meaning.... in this latter example you have a bad running motor (rich as pig) a dead CAT and exhuast air leak all at the same time.
Hello.: It sounds like its getting to much gas. Setting a long time could have the float stuck in the carburetor. T would NOT add any booster to the gas till I checked out the carburetor. I would recommend overhaul of the carb and set the timing back where it was. Also check all vacuum lines for deterioration and leaks. If it has a catalytic converter running rich will stop it up.
IT IS POSSIBLE THAT IF YOU GET A SMELL OF GAS THAT IS AN INDICATION OF THE ENGINE RUNNING RICH. THIS IS USUALLY CAUSED BY A BAD O2 SENSOR. YOU WILL NEED TO SCAN THE VEHICLE IF A CHECK ENGINE LIGHT IS ON.
THIS IS POSSIBLE CAUSES FOR FUEL SYSTEM TO BE RICH.CAMSHAFT TIMING INCORRECT.EVAP VAPOR RECOVERY SYSTEM FAILURE MAY BE PULLING VACUUM.FUEL PRESSURE REGULATOR COULD BE FAULTY.A BAD HO2S SENSOR.THE MASS AIR FLOW SENSOR OR MANIFOLD ABSOLUTE PRESSURE SENSOR ARE INCORRECT OR OUT OF RANGE.ONE OR MORE FUEL INJECTORS LEAKING.
check your hoses see if when runnig they close up,if not loo for vents for letting are out of the system if ther is a air pocket inyour coolant system it willcause the engine to overheat make sure to run the heat when refilling coolant system. if this fails to solve your problem look for a gurgling sound coming from the rad or over flow tank look for this when engine is cold and runnig if you do hear this then you might have a blown head gasket.you can buy a blown headgasket detection kit from your local auto parts store if you do hear or see this symtom.
This sound like a vacuum leak... Look carefully for loose/cracked hoses and connections from the fuel distributor/air box to the throttle body and around the idle enrichment bypass hoses... and also the intake gasket itself. The reason it smells rich is that the injectors are firing more to compensate for the lean running condition. It you run it this way too long it will overheat and warp the head or **** a valve... Hope this helps...;-)