SOURCE: 1991 gmc sonoma random loss of power
could be the crankshaft sensor causing the timing to be off if it has a coilpack type distributor or if it has a gear driven distributor then it could be either the distributor itself or possibly just cap and rotor
SOURCE: where is the fuel shutoff switch on a 1996 gmc sonoma?
no fuel shut off switch on pickups that i know of possibly bad fuel pump find your red bypass wire at relay to test pump
SOURCE: I have a 2001 gmc sonoma with obd error codes p0410 p0300 p0100
P0410 Secondary Air System PerformancePossible Causes Setting Conditions AIR solenoid Ignition circuit is open (check the U/H IGN fuse) AIR pump has failed (inspect air pump for water) AIR system check valves and/or pipes are damaged or leaking AIR system hoses or lines are damaged, pinched or kinked Base engine problem (e.g., excessive exhaust back pressure) PCM has failed P0300 Multiple Cylinder Misfire DetectedPossible Causes Setting Conditions Base engine mechanical fault that affects one or more cylinders EVAP system problem or the EVAP canister is fuel saturated EGR valve is stuck open or PCV system has a vacuum leak Fuel delivery component fault that affects two or more cylinders Ignition system fault (a coil) that affects more than one cylinder
SOURCE: my 2001 GMC sonoma stalls out going up hill?
how much fuel in tank and how long driving uphill???Pump may be running dry
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