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Shop Messed up my Truck!


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Posted

Funny story.

 

Turns out the shop put a circular rubber piece inside my cold air intake just so they wouldn't lose it and they forgot it was in there. When I pulled off the intake the piece just fell on the ground. Lol

 

I reset the ecu and had the truck relearn itself and now it's runs like a champ!

 

 

Thanks guys. Haha

Posted

On the topic of the transmission, I'm positive that it is unrelated. Your truck being a 99 has the old 4l60e trans and so any miles over 125k on the trans are miles likely on borrowed time. Unless you get lucky like I did. 208k on a stock transmission with only one fluid change ever at 30k. Towed, hauled and beaten and when we sold the truck it was still shifting strong.

WTF are you talking about? Sorry man but bad info on a web forum especially posted in a thread where the owner has no idea just chaps my ass. On the nbs 99 truck it is the same 300mm converter two piece case that the 2000,2001,2002, and even the 2003 and 04 trucks got overflow units that weren't 4L65Es. On the older 4L60e the case is cast as one, 298mm converter, and a totally different input shaft among other things. The only thing that carried the older unit parts over was the S-10 but it even got the 2 piece case.

Funny story.

 

Turns out the shop put a circular rubber piece inside my cold air intake just so they wouldn't lose it and they forgot it was in there. When I pulled off the intake the piece just fell on the ground. Lol

 

I reset the ecu and had the truck relearn itself and now it's runs like a champ!

 

 

Thanks guys. Haha

Note to self... Don't go back to that shop.

Posted

WTF are you talking about? Sorry man but bad info on a web forum especially posted in a thread where the owner has no idea just chaps my ass. On the nbs 99 truck it is the same 300mm converter two piece case that the 2000,2001,2002, and even the 2003 and 04 trucks got overflow units that weren't 4L65Es. On the older 4L60e the case is cast as one, 298mm converter, and a totally different input shaft among other things. The only thing that carried the older unit parts over was the S-10 but it even got the 2 piece case.

 

Note to self... Don't go back to that shop.

I say old meaning old by 2015 standards. I'm well aware that the 4l60e in his truck is the same as the rest of the gmt 800 trucks. My point is that a 4l60e is old and dated considering new trucks have an 8 speed.

Posted

Something to consider too with these trucks. If the MAF sensor is dirty, get a good electrical contact cleaner or MAF specific cleaner and clean it out. MAF sensor is responsible for alot more than people give them credit for. Also, if there's any coking or carbon building up on the throttle blade or throttle body that can cause bad idle issues. Cleaning both with help with how well it idles and runs.

Posted

Something to consider too with these trucks. If the MAF sensor is dirty, get a good electrical contact cleaner or MAF specific cleaner and clean it out. MAF sensor is responsible for alot more than people give them credit for. Also, if there's any coking or carbon building up on the throttle blade or throttle body that can cause bad idle issues. Cleaning both with help with how well it idles and runs.

+1 on this advice.

 

The throttle body of these trucks need to be cleaned regularly.

Posted

Throttle body and MAF are spotless.

 

Idle got a little weird again and looks like I got a small air leak still. It's getting a lean SES light P0105 for both banks

 

I sprayed the manifold with throttle body cleaner and idle went up. I got the day off work tomorrow and will get to the bottom of this.

 

Hope I don't gotta completely replace the manifold due to warping. Heard that's a common issue.

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