Tonyrodz's Tahoe Build Thread

[Tonyrodz]

Good job Tony! Good stuff here with the new job and the son helping!

Thx @89Suburban/Paw Paw. Nothing good to report on the brakes front--
Put the Tech 2 on, but couldn't really find much. I found a bunch of 4wd/transfer case stored codes in the history, and while looking the reduced engine power popped up 2-3 times. I couldn't reset it using the Tech 2 so I had to use my regular scanner for that. I looked all around, even in special functions and found nothing. I was able to cycle the abs.module on/off quite a few times--so maybe that rules out that module. So, nothing new to report.

 

[Tonyrodz]

expand...

Forgot to add this---this was while I was in park--

This is what my regular scanner says it is. I was having an issue with the abs giving me intermittent issues prior, saying it was the left front sensor. I did the front pads maybe a month ago, and swapped in a new sensor. Now it's been lit ever since. I haven't had time to swap it around--i saved the old one.


Btw--that left front sensor is brand new, so that's weird.

 

[Tonyrodz]

The air I'm hearing sounds normal to me. Does anyone think it's excessive?

 

[Fless]

It could be a bit of work but what about swapping sensors side to side, see if the codes follow?

 

[Scottydoggs]

that dont sound right, like is really leting out all the air in the booster. engines off when you did the vid right? saw the pedal look to get firmer. does the idle really surge when you it running?

 

[OR VietVet]

The first two pedal pumps sounded way to loud. The third was closer to normal.

 

[Tonyrodz]

It could be a bit of work but what about swapping sensors side to side, see if the codes follow?

I'll have to do it next weekend.

that dont sound right, like is really leting out all the air in the booster. engines off when you did the vid right? saw the pedal look to get firmer. does the idle really surge when you it running?

The idle does surge sometimes while at a red light. I've swapped out the mags to a known good oem unit and it hasn't changed. I've been double posting--also on the 01-06 gmt 800 thread and someone there check their brake pedal--did the same exact thing. And theirs is fine.

 

[Tonyrodz]

The first two pedal pumps sounded way to loud. The third was closer to normal.

I don't get it, it stops fine and the pedal doesn't bleed down--for me anyway.

 

[OR VietVet]

The pedal will not "bleed" down with a failing booster, like with a failing master cylinder. Sounds to me like a failing vacuum booster. If you have hydro boost, that sound should not even be there. Eventually, if the booster fails completely, that pedal will be HARD. That surging idle could also be from a vacuum leak from the brake booster. Intermittent.

 

[Tonyrodz]

The pedal will not "bleed" down with a failing booster, like with a failing master cylinder. Sounds to me like a failing vacuum booster. If you have hydro boost, that sound should not even be there. Eventually, if the booster fails completely, that pedal will be HARD. That surging idle could also be from a vacuum leak from the brake booster. Intermittent.

No hydro boost. Think the brake maintenance light would come on for a bad booster?