GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

5.3 Big power loss

Thread Tools
 
Search this Thread
 
Old Jun 24, 2007 | 05:04 PM
  #21  
viciousknid's Avatar
Thread Starter
Where's the Beef?
iTrader: (8)
 
Joined: Jan 2007
Posts: 9,382
Likes: 1
From: Dover, Oklahoma
Default

i was thinken 3.23's but he said it read as 3.42's. He's gonna look at it tomorrow. We'll make sure it made the right adjustments to the speedo because it was off. He told it the right info tho. I'll see what the glove box says... thats where the code is right?
Reply
Old Jun 24, 2007 | 06:08 PM
  #22  
Phantom's Avatar
11 Second Club
15 Year Member
iTrader: (16)
 
Joined: Sep 2006
Posts: 5,694
Likes: 50
From: The 405
Default

Originally Posted by 99Silverado5.3
The check engine light may be p300-random missfire, your tuner probably didn't raise the count for missfires up, happened to my 99. No biggy though, just have to see that SES light till you get it fixed.

i forgot to turn his rear 02's off oh well no biggy though
Reply
Old Jun 24, 2007 | 06:21 PM
  #23  
53bowtie's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Mar 2007
Posts: 1,614
Likes: 14
From: Detroit, MI
Default

you can look in the glove box but i have 3.42's and i run about 1900 rpms at 70 so maybe you can use that as a gauge......
Reply
Old Jun 24, 2007 | 06:39 PM
  #24  
viciousknid's Avatar
Thread Starter
Where's the Beef?
iTrader: (8)
 
Joined: Jan 2007
Posts: 9,382
Likes: 1
From: Dover, Oklahoma
Default

Here's my codes:


We were just trying to get it to not be a loud sloth. It'll be a lot better tomorrow. I have about 12k more miles to get a new tranny under warranty.
Reply
Old Jun 24, 2007 | 06:55 PM
  #25  
99Silverado5.3's Avatar
TECH Addict
iTrader: (7)
 
Joined: May 2004
Posts: 2,558
Likes: 0
From: (281)-(713)-(832)
Default

Yeah, get those couple small things fixed and your good to go...also adjust the speedo for your tires if not already done.
Reply
Old Jun 24, 2007 | 07:27 PM
  #26  
RoosterMcCandles's Avatar
TECH Addict
iTrader: (4)
 
Joined: Apr 2006
Posts: 2,111
Likes: 0
Default

I'm pretty sure GU6 is 3.42's...
Reply
Old Jun 24, 2007 | 07:47 PM
  #27  
viciousknid's Avatar
Thread Starter
Where's the Beef?
iTrader: (8)
 
Joined: Jan 2007
Posts: 9,382
Likes: 1
From: Dover, Oklahoma
Default

It is 3.42's. I looked it up. Unless a previous owner changed it. But it didn't seem like the previous owners were much into performance.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Sexyrado327
FUEL SYSTEMS
6
Aug 2, 2015 04:08 PM
elpyro89
GM Engine & Exhaust Performance
1
Jul 28, 2015 05:51 PM
steves86ta
GM Engine & Exhaust Performance
5
Jul 28, 2015 10:21 AM
WICK3DxGATA
FORCED INDUCTION
4
Jul 21, 2015 06:59 PM
GreyChevy
Tuning, Diagnostics, Electronics, and Wiring
1
Jul 7, 2015 08:57 PM




All times are GMT -5. The time now is 01:21 PM.