Recent content by TahoeLTZ

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    '07 Tahoe Limp Mode!

    '07 Tahoe 4WD LTZ...
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    '07 Tahoe Limp Mode!

    Update: We are having a No More Limp Mode Celebration!!! Been over a 1000 miles now and the Tahoe is running like new. The fix? The dealer finally re-wired the entire line from the computer to the throttle body. Not just the last 12 inches, but the ENTIRE line. Now, it could have been...
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    '07 Tahoe Limp Mode!

    Yeah Irish I tend to agree.........if the Chevy people cant fix their own product then there is something seriously awry... Thnx Trey, at this point I am willing to try anything. Just spent 2 hours under the hood of it tonight, unwrapping ALL of the wiring from the TPS on the throttle body...
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    '07 Tahoe Limp Mode!

    Why oh why am I bothering with this thing?!!??!! Since I posted last my '07 Tahoe with 102000 miles has limp moded at least a dozen times. Once while pulling a 4000 pound boat up a hill -- that time it not only went into reduced engine power, it actually died while climbing the hill. Thank...
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    '07 Tahoe Limp Mode!

    Well, after 1200 miles trouble-free miles doing everything from short little town trips to towing a 2 ton boat 300 miles, plus driving up in the hills to a remote cabin, it had to come to an end. Took the Tahoe to the brake shop to have the brakes inspected for a long trip coming up. They...
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    '07 Tahoe Limp Mode!

    Jiggled, not "giggled." Tho I am starting to just giggle at the whole situation. :hahano: SteveK is probably right: there was a short or loose wire connection. Whatever you do, DONT buy another alternator if you are having this problem. Oreilly Auto Parts tested the old one, and said it...
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    '07 Tahoe Limp Mode!

    Well, they replaced the TPS and it did it again right away. Knowing it was a dangerous issue (due to limp mode and at one point the engine quitting on the interstate) they kept it for a week at the dealership. I got it back with an additional 500 miles on the odometer, and they stated they did...
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    '07 Tahoe Limp Mode!

    Hey guys, thanks for the ideas. What makes these forums great is all of us coming together to try and figure out these problems so others can possibly get something out of it in the future. The Tahoe is at the dealership again. This time, they pulled up 9 stored codes that occurred in the...
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    Reduce engine power???????

    Bought new alternator and installed it. Waste of money. Went into limp mode within an hour.
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    '07 Tahoe Limp Mode!

    Well, did a ton of research on this and it appears the problem directly relates to the Stabilitrak system, which in and of itself is comprised of NUMEROUS sensors and modules throughout the vehicle. It only takes a simple module/sensor malfunction and/or false trigger, or even an electrical...
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    '07 Tahoe Limp Mode!

    Hey guys, found this information about the Regulated Voltage Control system that the newer GM vehicles now have. Explains the fluctuating guage: Condition/Concern: Some customers may comment that their voltmeter is fluctuating between 12 and 14 volts on their full size pickup / utility...
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    '07 Tahoe Limp Mode!

    We did put a brand new battery in a couple of months ago. Update: just got back from a "Test" drive after the new alternator, and after about 45 minutes of driving like a dream, it did it again. Exact same symptoms. Plus, the altmeter does still fluctuate, and I too believe this is...
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    '07 Tahoe Limp Mode!

    Didnt get the actual code, but the service manager said they were getting a code that said the "computer is unable to communicate." Unable to communicate with other sensors and such? Not sure. Last time it was in they had it for a day and returned it saying a ground wire on the firewall was...
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    '07 Tahoe Limp Mode!

    Hi all. Did some searches on this but havent found real answers yet. Have an '07 LTZ with 97000 miles on it. No mods--completely stock. Recently having an issue with "service stabiltrak, service traction control, engine power reduced" and of course I have to nurse it to the side of the...
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    Reduce engine power???????

    Hey Jay, just wondering if you still haven't had an issue since the alternator replacement? My '07 Tahoe recently started with the "limp mode" problem ("service stabilitrak, service traction control, reduced engine power"). Started a couple of months ago and it only about once a week, now does...
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