Computer Cover

BDBWTE · November 4, 2002

This weekend I helped my friend install a Jet Chip into his HD...well the Jet Chip is a ECM replacement or something so anyways you have to take the cover off the computer, brain box, and put this Jet Chip in between the Computer and the ECM Plug...now the cover doesn't hardly fit...I jammed in on the best I could with a set of C-Clamps but the plastic locks aren't in the holes to lock the cover on....I know this is hard to understand but if anyone out there has put a Jet Chip on the Silverado I was wondering if you even bothered putting the Dust Cover back on the computer...thanks or if you think it will hurt anything..

CMNTMXR81 · November 4, 2002

On the previous generation C/K trucks, the PCM was on the driver's side fender exposed to everything. So I wouldn't loose any sleep over it. The connectors are moisture sealing anyway.

nonstop · November 5, 2002

What you need to do is get a 10lb hammer and motivate it on there. Just kidding.

Does the truck runn fine other wise? its not the wrong chip?

If it runns, and its the right chip I'd check with Jet.

They sould be able to tell yea.

I hate saying this but, if all else fails, read the directions.

CMNTMXR81 · November 5, 2002

I had one of those Jet "power modules" (as they call it) on my 97 Tahoe. It installed like he said.

I noticed firmer/crisper shifting, and it seemed to rev a little more before shifting. performancewise I didn't make any documentation cause I never dyno'd or tracked it.

When I took it out this past July to turn the truck back in, I almost preferred it's stock settings better.

BDBWTE · November 6, 2002

Called Jet up its the right chip for his truck...I'm not worried a whole not about the elements hurting the brain boxs much..you should have see me finessing the cover on I broke the ribbing the center of the cover to get it to cover the connections and the only thing holding the cover on is the compression fit due to the tight fit on the computer housing...lol...I just wanted to double check...

I drove the truck before and after and I see loss of low end torque to be honest but I think it rev's a little faster and not to mention backs a better kick at about 60mph+ plus a real cool almost 4 barrel sound I heard it and I was like I miss my 750 and 1050 Holleys..