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Thread: went to see the truck today for possible pick up

  1. #1
    DBYRD Guest
    well today i went to pick up the truck. we started it up and it seemed like the battery was almost dead(brand new yellow top optima 200 bucks). anyways it starts up but its idle is at like 300-500 rpms, seems very weak, but figure that may be ppart of the pcm that needs to be adjusted. but when i left the shop the truck got up to about 40 and was hitting 4000 rpms and wouldnt go any faster. wjhat could the problem be? maybe the engine was hooked to a 80e and needs to be tuned to the 60e? the dudes getting it looked at tomorrow, but i figured maybe id get ideas from yall now.

  2. #2
    DBYRD Guest
    no one knows???????

  3. #3
    <div class='quotetop'>QUOTE(Allstar55566 &#064; Sep 8 2006, 10&#58;51 PM) [snapback]64452[/snapback]</div>
    well today i went to pick up the truck. we started it up and it seemed like the battery was almost dead(brand new yellow top optima 200 bucks). anyways it starts up but its idle is at like 300-500 rpms, seems very weak, but figure that may be ppart of the pcm that needs to be adjusted. but when i left the shop the truck got up to about 40 and was hitting 4000 rpms and wouldnt go any faster. wjhat could the problem be? maybe the engine was hooked to a 80e and needs to be tuned to the 60e? the dudes getting it looked at tomorrow, but i figured maybe id get ideas from yall now.
    [/b]

    Hmmm, it could be the tranny. Is it stuck in 1st or 2nd gear? Are you running the 4l80e 6.0 PCM with stock tune?
    http://i99.photobucket.com/albums/l2...hsigcopypt.jpg
    6.0 swap - TR224 112 lsa - 918 springs -7.4" comp pushrods- LS2 timing chain -Walbro 255LPH intank- Pacesetter LT&#39;s - Custom Y-pipe with Quickflow muffler - LS1 E-Fans - 160 stat - Nelson Tuned - Fuddle 3K stall - FLT4l65e w/ Vac MOD - DJM 4/6 - Doetsch Drop shocks

  4. #4
    DBYRD Guest
    yeah stock tune, again we&#39;re thinking maybe its not picking up the differences in the 60e and 80e, and maybe thats y its acting weird. ive never had a problem with this transmission, so again were thinkin/hopin thats all thats going on.

  5. #5
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,138
    i think you need to just get it tuned. plain and simple and from there if it acts up just see if its then tranny related.
    1951 3100
    1984 C10

  6. #6
    yea, its most likely the tune. If your short on cash see what Allen would charge for a "Stock 6.0" tune with the 60e tuned to your vin.
    If he would do this im sure when its time to get the full blown Nelson Tune he would work out a deal with you, possibly subtract the price you paid for the stock tune and just have you pay the difference. Just tell Allen your situation&#33;
    http://i99.photobucket.com/albums/l2...hsigcopypt.jpg
    6.0 swap - TR224 112 lsa - 918 springs -7.4" comp pushrods- LS2 timing chain -Walbro 255LPH intank- Pacesetter LT&#39;s - Custom Y-pipe with Quickflow muffler - LS1 E-Fans - 160 stat - Nelson Tuned - Fuddle 3K stall - FLT4l65e w/ Vac MOD - DJM 4/6 - Doetsch Drop shocks

  7. #7
    Join Date
    Feb 2005
    Location
    Austin, Texas
    Posts
    2,053
    the computer has to be flashed with the tune of a vehicle that comes with the 80e, its my understanding its not something that can be done with HPT
    2007 CCSB Z71 VortecMax: Stock!

  8. #8
    Join Date
    Sep 2005
    Posts
    314
    <div class='quotetop'>QUOTE(Allstar55566 &#064; Sep 8 2006, 09&#58;51 PM) [snapback]64452[/snapback]</div>
    wjhat could the problem be? maybe the engine was hooked to a 80e and needs to be tuned to the 60e? the dudes getting it looked at tomorrow, but i figured maybe id get ideas from yall now.
    [/b]
    Did you just do an engine swap, Or engine and pcm? explain...


    <div class='quotetop'>QUOTE(1slow01z71 &#064; Sep 9 2006, 08&#58;55 PM) [snapback]64499[/snapback]</div>
    the computer has to be flashed with the tune of a vehicle that comes with the 80e, its my understanding its not something that can be done with HPT
    [/b]
    Sure you can with HPT or EFI, Hpt requries a rewrite with the proper cal. EFI I believe can rip the segment from what I have gathered, But dont use it so dont know all the details with there software.




  9. #9
    DBYRD Guest
    this is the pcm that came with the 6.0 bought as a package 3 months ago, u can tell this truck is a beast waiting to be released already&#33; truck in my opinion sounds nice, u might ask brandon what he thinks tho&#33;

  10. #10
    Join Date
    Sep 2005
    Posts
    314
    Ok, Not going to say thats your problem. But I have done a few that did the samething. Some ran better than others. Have you checked for codes you should be getting a few soleniod codes. Your old pcm should work for a test and have the proper segmant for the 4l60e you still have. It will run just fine with the 6.0L but need a retune for saftey as it may run alittle lean.

    Good Luck

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