I need a wiring diagram for a 99 chevy truck 2500

https://www.google.com/search?q=2007+Chevy+Silverado+2500+HD.+TCM+location

Diagrams and videos in the link

A 'bad' O2 sensor will not blow fuses, the heater goes open circuit. Your wiring can blow fuses.
Look for damage to the loom alongside the engine mount and exhaust mount.

Mary, 2003 Chevrolet Silverado 2500HD suspension and steering diagrams. Check the attached links,instruction and guides, Good luck
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Sounds like the Mass Air-Flow Sensor may be toast. I think you are on the right track. My scanner does not see MAF either. good luck.

1-8-4-3-6-5-7-2 chevroletpics.blogspot.com
I found the firing order and a picture of the engine. Hope this helps.

the best solution i know of is to buy a haynes manual it is about $25 but it has the wiring diagram in it

i own a 2006 chevy express cutaway box truck the interior box lights are not working and i do not know what fuse designates them can any one help me locate the proper fuse

the best thing for you to do is stop by your local GM dealership in the parts department and they be able to print you off all of the diagrams and pictures you will need

I have the wiring diagrams if you need them. Send me your email address with all information for you car. I will send you wiring diagrams. [email protected]