On a trip, I pulled up to the gas pump to get fuel and turned off the engine. I turned the key and the lights dimmed and starter did not turn over engine and did not hear the solenoid click. Good battery fully charged. Tried another 6 mos. old battery. Starter turns normally when jumped. Fuseable link (175 Amp.)bypassed and still will not start. Turned on ignition switch and was pushed 20 mph in 1st and 2nd gear and would not start. What is wrong?
What is wrong????????? That would be a guess on anyones part here ! Testing the electrical circuits involved would be the proper way to diagnose this no start problem ! Using a volt meter an wiring diagram to check voltage at different point's in the starter circuit . voltage drop testing ! Plus knowing how the starter system works !
Starter Circuit Operation
Voltage is applied at all times to the ignition switch from the IGN A fuse through CKT 42 (RED). When the ignition switch is turned to the START position, voltage is applied to the CRANK fuse through CKT 5 (YEL). From the CRANK fuse , voltage is either applied to the clutch pedal position switch (M/T) or the park/neutral position switch (A/T) through CKT 806 (PPL). When either the clutch is disengaged (M/T) or the transmission is in park or neutral (A/T), voltage is applied to the coil of the starter relay through CKT 1035 (PPL/WHT). Since the starter relay is permanently grounded at ground G102 through CKT 150 (BLK), the starter relay energizes.
Voltage is applied at all times to the starter relay contacts from IGN A fuse through CKT 42 (RED). When the starter relay energizes, the starter relay contacts close, and voltage is applied to the starter motor solenoid. Since the starter motor solenoid is permanently case grounded, the starter motor solenoid will energize two coils. The pull-in winding coil energizes in order to pull the starter motor solenoid contacts closed. When the contacts close, a plunger on the contacts causes the pull-in winding coil circuit to open. The hold-in winding coil then holds the starter motor solenoid contacts closed. Voltage is then applied to the starter motor from the battery through CKT 1 (RED) and the closed contacts of the starter motor solenoid. Since the starter motor is also permanently case grounded, the starter motor will run until the ignition switch is moved out of the START position. When this happens, a spring in the starter motor solenoid moves the starter motor solenoid contacts and the plunger back to the rest position.
Starter Voltage Drop
How to voltage drop test starter motor circuit
SOURCE: charged battery, hear fuel pump when turn over hear starter click
please clarify does it start or not ??
SOURCE: I have a 2001 GMC sonoma 4.3 v6 that will not turn
Try another starter and also try turning the crank bolt with a ratchet and socket to make sure that the crank isn't frozen in place. Do not leave the keys in the car when doing so. You don't want anyone messing around in the truck when trying that!
SOURCE: 2001 GMC Sonoma. SLS
Tilt the steering wheel down all the way and see if it starts, if it does then there is a main power wire loose in the steering columb. Thats all which comes to my mind at this time.
SOURCE: 2002 gmc 1500 sierra starter clicks but wont turn
Replace the starter, the solenoid cant engage the starter because it is locked up, hence the extreme voltage drop with the fan when you try to start it with the fan on.
SOURCE: `1998 GMC SONOMA WONT START WITH KEY ON CLUTCHPUSH IN STARTER OKBUT MOTOR TURN OVER
clutch safety switch bad. may be bad wire/fuse. shld be located on the clutch pedal normally kind of square to oblong box type switch abt inch and half long.you can unplug it, and place a jumper wire in the plug terminals and if it starts then you know its the switch (note: it works the same as a nuetral safety switch on an automatic)
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