2002 Z71 Day Running Lights Short?

02-Z71-TX · July 20, 2003

I recently (14months) had one of my Daytime Running Lights go out. Upon removing the bezel (easy if you read instructions) I noticed the light bulb and light bulb socket had smoke residue on them like a spark/short event took place. I am concerned, is this normal?

This ocured on a 2002 Chevy LS Z71 1500, extended cab.

Another problem that I think is related is I had a musty smell in my truck. I took it to the dealer and the had a TSB on it, they installed the following

12346391 Cooling Coil Coating Kit w/Extension Nozzle $267.80

12497910 Electronic Evaporator Dryer Module Kit (GIZMO) $263

and now when the blower goes off (about 30minutes after the truck is turned off), my headlights will flash. I have taken it back to the dealer for this and they have no idea how to fix. Any ideas out there?

Shaners · July 21, 2003

The DRL's are a known problem... generally it's the driverside that goes out first. I think it is because of cheap bulbs. The dealer should fix this for free if your truck is under warranty. A little DiElectric grease on the bulb/socket may help the problem.

As far as the A/C goes, you might want to consult another dealer....

Shaners · July 21, 2003

I would ask the dealer about the residue. I don't know if the DRL's are Halogen, but if they are and if they were touched with bare fingers, it can cause some problems.

AZ-Z71 · July 21, 2003

The evap thing, I looked into this because my A/C was smelling and actually the thing they installed turns on for like a few minutes every twenty minutes for I think an hour after you last shut the truck off. Something to dry the EVAP off. They say the condensation causes mold so the dry dries it before mold forms.

Why the lights flash must have to do with the way they hooked it up and and how it gets it power.

Supposedly the two kits you mentioned are sold together as one kit. The first one is supposed to be the coating spray with a extended nozzle so they could coat the coils. The second is the actual Evap kit. According to two dealers here I could not just get the coating kit but had to get the complete package, evap dryer and coil coating stuff at the cost of $190 for the two things together.

So hopefully you didn't have to pay for anything and they did it under warranty becaused they charged too much.

I'm going to take that part number for the coil coating and see if I can just get that part of it. I didn't like the fact that this dryer would be kicking on and off for an hour or two.