Push Button 4x4 Just Blinks

monteheeren · #1 01-19-2009, 09:25 PM

Here we go again. 2002 Silverado 3/4 ton 4x4 8100 engine. Had same problem last year, exactly 1 year ago. See my post http://www.automotiveforums.com/vbul...ht=push+button. Spent about $1000.00 last year to have this fixed. They installed a new T-Case actuator. The 4x4 has worked perfectly up until this winter when I really need it. The only difference now is that sometimes it WILL go into 4x4. I can hit the 4x4 buttons and all I get is blinking lights most of the time. Sometimes (After a lot of cussing) the 4x4 goes in and the light stays solid. What do you think the problem is now. Is the oil to thick in the T-Case, and won't go in 4x4 when its really cold. Is the actuator too new and just needs broke in? Is this just the nature of the beast? Any suggestions would be appreciated.

discnik · #2 01-19-2009, 09:43 PM

Once you do get it into 4WD does it drive ok, or does it slip, shimmy, not up-shift, etc. ?

monteheeren · #3 01-19-2009, 09:50 PM

No. The truck only has 32K on it. Once it goes into 4x4, everything works fine.

discnik · #4 01-20-2009, 01:14 AM

The reason I asked, I saw a TSB concerning the T-case clutch pack with the afore mentioned symptoms. Unfortunately since these symptoms are not present this would lead me to believe that it is the actuator again. Unless there is a control module in the system also. I do not have a wiring diagram on your vehicle to check this though. Sorry.

MT-2500 · #5 01-20-2009, 08:14 AM

Hello.
MONTEHEEREN
Sounds like problems again!!!
It needs to be hooked up to a transfer case/transmission capable scanner.
There is shift test built in a good scanner to test things out.
You need to get codes and do the shift test to find the problem.
Have it scanned and get codes and then clear codes and see what comes back.
Post back all codes.

monteheeren · #6 01-20-2009, 01:34 PM

I'll call the shop and have them re-scan it again and re-post.
Thank you for you reply.

MT-2500 · #7 01-20-2009, 01:49 PM

OK
Codes should point to problem.
And if there scanner will run the shift test have the check shifting out.
Good luck

j cAT · #8 01-20-2009, 05:54 PM

Quote:

Originally Posted by MONTEHEEREN

No. The truck only has 32K on it. Once it goes into 4x4, everything works fine.

I remember this one ,,,stuck in garage and paid a crazy amount of money to repair...I HOPE YOU DON'T GO BACK TO THOSE THIEVES AGAIN...

grego10r · #9 01-22-2009, 05:04 PM

my went bad somemany times i dont know what to say this cars got the worst 4x4 systems ever sory to say that but i think gm suck . i like my silverado but 4x4 in it suck all theway look at all this post in here evryone got same problem old cars and new wtf is wrong whit gm hope u get it fix but how long will last not long im sick of this 4x4 whatever i needit to use it gose bad ty

j cAT · #10 01-22-2009, 05:09 PM

Quote:

Originally Posted by grego10r

my went bad somemany times i dont know what to say this cars got the worst 4x4 systems ever sory to say that but i think gm suck . i like my silverado but 4x4 in it suck all theway look at all this post in here evryone got same problem old cars and new wtf is wrong whit gm hope u get it fix but how long will last not long im sick of this 4x4 whatever i needit to use it gose bad ty

look we know all that GM suckz stuff...What can you offer for advice since it appears you have alot of experience getting the shaft from GM...with this 4x4 problem...

monteheeren · #11 01-28-2009, 09:05 PM

Took truck back in to get it scanned. They said it was the transfer case actuator again. It was covered under warranty this time. Got in the truck to take it home, and low and behold, it would not go into 4x4 again! It just blinks. They are taking it back in tomorrow to try it a 3rd time! Seems to have more of a problem when it is cold outside. Wish it had the old lever on the floor that worked and was fool proof! Any chance of someone out there know if there is such a kit? I'll repost when I find out more.

MT-2500 · #12 01-29-2009, 09:16 AM

No such kit.
If a 246 you have the best setup on a 4W.
It would take a lot of time and money and changing to change it over.
As in post no 8.
It sounds like your repair shop does not know what they are doing or/and do not have a good scanner to test it.
What was the code no they got.
Post back the codes no.
Your transfer case is computer controled.
A good transfrer case scanner and someone that knows how to use it can get to the problem right away.

Find a good repair shop.
Check around Ask around
Word of mouth.
Family friends coworkers neighbors business people and delivery people.
Mailmen and parcel delivery people get around and notice a lot of stuff.
Even a good parts house knows what shops are good and not good.
Chamber of commerce and better business bureau and city hall.
If you find a good referral to a repair shop go look them over and talk to them.
Look for a clean looking busy place with nice people running it.
Ask a few questions and ask about their qualifications and training.
Not all places have trained tech/mechanics.
If they do not find a place that does.
Even all dealers do not have all trained techs/mechanics.

j cAT · #13 01-29-2009, 09:29 AM

mt 2500....... I bet this repair shop just cleaned the encoder motor contacts and never changed the motor with new....

MT-2500 · #14 01-29-2009, 09:58 AM

Quote:

Originally Posted by j cAT

mt 2500....... I bet this repair shop just cleaned the encoder motor contacts and never changed the motor with new....

You hit the nail on the head in post no 8
They are missing the boat someplace.

mudrunner80 · #15 02-01-2009, 09:53 AM

I'm not sure of the newer models but on my 88 the actuator went bad and replaced it with just a simple cable under my dash. Yes it pulls hard but much like my 80, when its locked in its locked in. None of this guess and hope thing. Come to think of it, I still gotta figure out how to "lock" in the rf axle tube assembly.

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