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Couple Of Questions...04 Silverado

Pete94Silverado

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Pete94Silverado Enthusiast

Pete94Silverado

Posted
Posted

I have a few questions for the folks on the board and...I've tried searching but...didn't find exactly what I was looking for.

 

1) Why does everyone recommend the Mag Hytec differential cover? I understand it from an increased fluid capacity (should translate to cooler running differential) and maybe for the drain plug/dipstick but, why the push for that cover? Why not something like the T/A Performance cover? I only found one post regarding the T/A. With the adjustable bearing pre-load, I would think the T/A would help the differential live longer and particularly for those with the G80. Seems like they would both have their benefits but, for those of us that are modded for performance, bearing deflection would be a greater concern...not just cooler running diff. Thoughts?

 

2) The instrument cluster on my 04 has been really acting up lately...could be cold weather...I don't know. Usually it's only been the oil pressure gauge that was toast. However, once in the past couple of weeks, I left for work and the speedometer and tach didn't work at all. Once out of my neighborhood, voila, both started working. Fast forward to today, the speedometer is registering 30 mph higher than the truck is actually travelling. When I switch the ignition off, the speedometer just sits at 30 mph. I do not know if the previous owner had the instrument cluster replaced or not. With 102k on the clock, what are my chances at getting GM to cover this? Probably zero but I thought I would ask. BTW, it does not appear to have an affect on the odometer.

 

Thanks in advance,

-Pete

spock Enthusiast

spock

Posted
Posted

On the cluster the stepper motors are faulty. Very common problem. Had mine replaced under special warranty coverage on the '03's and 04's up to 70k mi. Couldn't hurt to ask a dealer to cover it though since it 's such a common problem. You could try replacing the stepper motors yourself, I hear they're really cheap or check ebay for guys that repair them.

lvlagnum Enthusiast

lvlagnum

Posted
Posted

Mr Spock is being quite logical!

 

The instument clusters in the '03 and '04 GM full size pickups and SUVs are covered by a 7 year/110,000 kilometer (70,000 mile) special warranty. Every owner should have gotten a letter from GM about it in the mail. Even if you are over the time or distance, it still wouldn't hurt to try to get it repaired under warranty. I had a front wheel bearing assembly replaced under a goodwill warrany for a $100.00 deductable even though I was 2 years past the 36 months. Remember, the squeaky wheel gets the grease.

 

Live long and prosper!

 

Cheers, lvlagnum. :D

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