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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / June 2005Envoy or Trailblazer service question
I have a 2002 Envoy, although a Chevy Trailblazer owner may run into the same thing My dealer does a 30,000 mile service for almost $400 that includes numerous things: new air/fuel filters, tire balance/rotation; numerous inspections of various systems such as cooling, brakes, etc. Couple items on the list caught my eye and made we wonder: 1) "drop" the drive shaft, inspect, and lubricate 2) fuel injector service; detach fuel filter and run cleaner thru injectors, decarbon throttle body, etc I use good top-tier gasoline, and occasionall Techron, so I'm questioning the need for a fuel injector service at this time. I notice they charge $99 for this service when done separately. Secondly, does that sound right about "dropping the driveshaft" and lubing/inspecting it? Have any of you Envoy or Trailblazer owners had that done on a routine 30,000 mi, service? Thanks for info. RGB The driveshaft issue is not mentioned in any GM service guides for this truck, I have a 2002 TB, the full size trucks have issues with the shaft binding on the yoke to the transfer case on 4wd and require relubing. The fuel inj service most times unless there is a performance issue, really is optional. >I have a 2002 Envoy, although a Chevy Trailblazer owner may run into > the same thing My dealer does a 30,000 mile service for almost $400 [quoted text clipped - 17 lines] > > RGB Is this a shaft with a splined sliding section? If so why didn't they just drill it for a zerk fitting? Geez... nate > The driveshaft issue is not mentioned in any GM service guides for this > truck, I have a 2002 TB, the full size trucks have issues with the shaft [quoted text clipped - 26 lines] > http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups > ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- > Is this a shaft with a splined sliding section? If so why didn't they > just drill it for a zerk fitting? Geez... That wouldn't make any sense. These driveshaft yokes slide right into the back of the t/case. You would end up pumping a ton of grease into the transfer case. The lubrication for the splines is "supposed" be from the t/case fluid, but it doesn't always work that well. Grease applied by hand is usually enough to keep it working for a year or so. Ian >>Is this a shaft with a splined sliding section? If so why didn't they >>just drill it for a zerk fitting? Geez... [quoted text clipped - 7 lines] > > Ian Ah, I was thinking of a fixed yoke on the TC with the slider in the middle of the shaft. what you're describing sounds like it ought to work, but doesn't :/ nate  Signaturereplace "fly" with "com" to reply. http://home.comcast.net/~njnagel > Ah, I was thinking of a fixed yoke on the TC with the slider in the > middle of the shaft. what you're describing sounds like it ought to > work, but doesn't :/ Most of the two piece driveshafts that are in the full size trucks still use a grease fitting, but of course the slip yoke is external. There are a few two piece driveshafts now that use bellows style boot over the slip yoke section. No grease nipple on those. Ian |
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