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SUVs Chevrolet TrailBlazer Chevy TrailBlazer Transmission Problems
422 messages, Last post on Dec 03, 2009 at 2:16 PM
You are in the Chevrolet TrailBlazer Forum. Your Hosts are steve_ & tidester
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Replying to: shawnee1 (Jun 18, 2008 8:06 pm)
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Replying to: dlucken (Apr 26, 2008 6:01 am) |
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Replying to: robied (Jun 19, 2008 6:16 am) You know they wonder why they are having trouble and losing customers to Toyota and the others...
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Replying to: mstarr13 (Jul 02, 2008 3:09 am) |
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| I've read many of your reviews online of which I've had the same problem: the sun shell on the TrailBlazer. Most of you on here have the same problem and symptoms of the broken down sunshell. While we all would like to think the sunshell is defective and a recall should be in place, we have to remember the hundreds of thousands of units on the market that are perfectly fine. We are speaking to one another in a closed forum all with the same problem, but in reality we are a fraction of one percent of the TrailBlazer's on the market that have the problem. With that being said, I recently picked my TrailBlazer (which has 79,000 miles) up from my local Chevy dealership after receiving goodwill assistance. The goodwill assistance has nothing to do with calling the GM service center. They are the "go between" you and the dealership to make it look like they are the party helping you when in reality goodwill assistance is determined strictly by your dealership. If you receive assistance (as an example, 50% split on the repair cost), it is coming from the dealer. If you do not receive assistance, the denial is coming strictly from the dealer. The Chevy dealerships receive X amount of dollars each year to provide "goodwill assistance", but they approve whether or not they are going to help. Calling a GM 800 number is no assistance. I called GM and the service rep at my dealership flat out told me it is no use. If you want goodwill assistance you have to ask the dealership for it. I was able to get a new sunshell for $660, which would normally run $1,400 to $1,800. They treated me well. The TrailBlazer runs better than ever. Good luck to all. | |
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Replying to: robied (May 31, 2008 8:00 am)
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Replying to: lbrandy40 (Jul 04, 2008 2:17 pm) I have no idea what the guy above is talking about regarding a sun shell....
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Replying to: powella1 (Jul 07, 2008 10:52 am)
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Replying to: lbrandy40 (Jul 04, 2008 2:17 pm) |
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this transmission has been around since 1982 it predisessor was called a 700R4 its still the same trans internally (some changes but still same basic operation).The "Reaction Shell" aka sunshell has been a weak link in this trans since its inception in 1982. there is however a cure for this problem but it will never be offered by any dealership since it is an aftermarket part.here is the only symptom connected with "reaction shell" failure. trans will shift really late and will have 1st and 3rd only, 2nd 4th and rev will be missing. the cure for this problem is called "THE BEAST" and is a aftermarket hardened steel shell that is twice the thickness as the oem part. I install "the beast" in every one of these transmissions i rebuild to avoid further failures in this area the other weak link in this transmission is the 3-4 clutch pack I noticed a few posts concerning the trans shifting from 2nd and then high engine rpm's(neutraling). if you are experiencing this problem the trans will have to be rebuilt. this transmission unless very late model comes with 6 frictions in the 3-4 clutch pack there is some aftermarket clutch kits offered by raybestos that will increase the amount of frictions in this clutch pack to 9 I would also recommend that you have the 9 clutch pack installed if you have to have a rebuild. the later model (4L65E) comes with 7 frictions in the 3-4 but can also be upgraded to 9 frictions. Harsh shifting: if you experience this problem in 1994 and up transmissions it is normally based upon a valvebody problem with the torque converter regulator valve wearing out and leaking by the valve. it normally will set a code 1870 (trans component slipping) if handled as soon as the problem shows up it can be remedied by a aftermarket fix offered by www.sonnax.com and involves valvebody removal (not a overhaul) and 1 valve being removed and bored out and replaced with a new valve. todays new vehicles are supposedly built with fuel mileage and and overall economy based theries. what has actually happened is the manufacturers have gone using aluminum valvebodies and valves to "lighten the load" these valves and valve bodies wear severely creating all sorts of "oil circuit integrity" problems. please feel free to visit www.sonnax.com and have a look at just how many different fixes are offered for almost EVERY transmission on the road today. or drop by my carspace page for some more info on todays transmissions and thier problems
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