2002 Chevrolet suburban no crank no start

Asked by Mar 11, 2017 at 05:31 PM about the 2002 Chevrolet Suburban 1500 LT

Question type: Maintenance & Repair

Basically my 2002 Chevy suburban is acting up by
not starting or turning over.. just bought a new
battery, new alternator, new starter. The lights on
the dash light up but the gauges won't work the
radio comes on and horn/lights work the radio cuts
off when I turn the switch and the passenger side
Windows won't roll down

10 Answers

98,585

Check for blown fuses first, then move onto the ignition switch, gear selector switch and wiring.

Yeah I figured it was the ign switch but I don't think my gauges and Windows would be acting up or my radio cutting off when I try to turn it over

It acts like a bad battery when I turn the key I get nothing

98,585

This really sounds like you have more than just one problem. All accessories drop out when the key is placed in the crank position, so radio and windows not working in that position is normal, my GMC also drops out the radio when ignition is cranking, never tired to roll down a window in that position but I'm sure they quit also. The ignition switch is the first thing I would check.

1 of 1 people found this helpful.

Idk its weird man now my speedometer is on 100

This is what I'm looking at

How would I go about checking it?

98,585

Does it drop when the key is turned off? If it does then there could be a short in the VSS circuit or sensor. You really need a good live data scanner, that way you could see in real time what each sensor is telling the. ECM. And its response to those readings.

No not at all it stays there. It's been like that since this morning, I'm hoping once I resolve the issue it goes back to normal

98,585

Ok if it stays at full scale then you have a stuck stepper motor in side the cluster assembly for the speedometer drive, you can get replacements on EBay very reasonable, but be very careful replacing them, there is also some videos on you tube on doing this type of work.

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