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1999 Chevrolet C1500 - Page 9 Questions & Answers
1996 chevy 1500 4wd pu. cuts out on accel. and
Check the TPS, (throttle position sensor), and the fuel pressure. If it is a TBI model the fuel pressure should be 6-12psi. If it is a MPI injection system the pressure should be about 55-65psi.
Diagram v6 engine
you have to understand injectors pulse come like thispcm have to know if engine rpm running over 400rpmkey is on injectors have a + positive and a ground that is given by pcm
Ignition coil arcing
insulation failure. is it arcing from the lead - then replace lead, is it arcing across the coil face - replace coil. Generic coils are available
Power window
Check for a blown fuse or loose or broken wire.
I have a 2007 1500 suburban - check engine light
cylinder 1 getting too hot causing ceremic crack could have wrong heat range plug in which spark plug too hot.or need replace spark plug wires.one plug wire could be bad best replace all spark plug wires.
Loose gas pedal
I would expect to find the cable has stretched or is about to break, or the pivot pin is falling out of the pedal hinge.
Truck keeps dieing
I will throw out a few ideas, maybe someone else had the identical problem and solved it. With the gauges spiking, you have electricity running around trying to find a place to ground. This is not the whole problem though, because something is staying connected long enough to drain your battery.There are several Alternator tests, Voltage output, and the Diode tests. You can get good readings on Voltage and still have bad diodes. Diodes act like little gates to keep electric flowing in one direction. When these little gates fail, it allows the battery to discharge through the Alternator.Your problem sounds also like a stuck Relay. Relays work differently than many people imagine. Relays not only connect the HOT positive wires, but also connect one Negative wire to another Negative wire. When the contact points inside the Relay stick, a Negative wire may stay connected when the vehicle is turned off. Same thing for Positive wires in the Relay."Not starting" when shut off is confusing. Do you mean it cranks normally and does not fire up? or do you mean the Battery is dead and the starter will not crank the engine? If the Battery is too low to crank the engine immediately after driving, then the Alternator is not charging while you are driving and is not showing a discharge.You may simply have a bad Ignition switch. The Alternator needs power from the ignition switch and it gets into the Alternator through the small plastic clip that goes into the Alternator case. Shorting inside the Ignition switch can also affect the Relays powered through the switch. The Ignition switch would be a good place to start to make sure all circuits are getting reliable power and that when the key is out, power is really off.So have Autozone, Advance, or Oreilys do a Diode test on the Alternator on the truck. Its free and doing it on the truck can reveal truck wiring problems that will not show up on a bench check.Hope this helps.
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