Why won’t truck stay running?

Asked by Lisa Mar 24, 2020 at 02:20 AM about the 1993 Toyota T100

Question type: Maintenance & Repair

93 Toyota t11.  Replaced the starter yesterday and
it will start but won’t stay running.  Suggestions?

1 Answer

120,545

The starter will get the engine going, but after that, it's not the starter. If the car ran OK after you got it back, it's not likely something the dealer/mechanic did..... There are lots of reasons why a car will start but won't stay running. Might be a fuel problem, like a defect in the fuel pump system, injectors, or injector pulse. Might be electrical, like a problem with the alternator, coils, or one of the essential sensors: MAF/MAP, throttle position, crankshaft position, camshaft position, engine coolant temperature, O2, or even the knock sensor. Might be a fault in the ECU itself, or a relay. Might be mechanical, like a vacuum leak, EGR valve, defective idle air control valve, dirty throttle body. Might even be a defective ignition switch. Go to a car parts store and have codes read, probably free.

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