WK1 Troubleshooting / Problems Discussion / Dealer ServiceIf you are having some problems with your Jeep Grand Cherokee SRT8 and need assistance in troubleshooting and diagnosing the problem, this is the proper place to discuss it. Were you treated fairly or poorly at a dealer? Warranty issues? Let us know.
Yes, just as I have mentioned earlier on in this thread, changing TCM's can apparently corrupt the PCM. When the PCM is reformatted in some way, everything can be fine unless there is a major/minor mechanical issue going on, as the PCM is really the actual brains of the vehicle. TCM's can give trouble as well, and of course ESM's, due to being dirty, but in my experience, a corrupted PCM can be a very bad thing!
__________________ 2006 JEEP 426 SRT8 "IN TRAINING" ----INFERNO RED[Goodies are always on the way ]
Stage 6 QA1 Adjustable Shocks, Billet Catch Can, AR Long Tube Headers, Paramount Stage II Valve Body, Paramount TCM , Dual Snorkel Volant Cai, Innovate MTX-L Wideband, Tuna Tooned
Speedy's Customized 1-Piece Upper Radiator Hose Setup
If it's Cheap and Reliable it aint Fast
If it's Cheapand Fast it aint Reliable
If it's Fast and Reliable it aint Cheap
Hey guys.. I have a 2007 SRT with similar problems.. I'll be pulling away from a light at light throttle (yes, that happens!) or cruising on the highway and I will loose throttle response for a few seconds. I also noticed the transmission looses torque converter lockup.. I used to get a CEL on the dash.. I have since done some massive grounding upgrades under the hood to finalize the foundation for a big audio system upgrade.. Now, I don't get the CEL, but the phenomenom happens.
I have a data interface behind the radio to provide accessory, reverse and illumination output. Happened with this removed.
I have a security/remote start interface in the dash. happened with this removed.
I have the Diablo Trinity 91Oct CAI tune loaded.. Happened with this removed.
I saw above a comment about an ESM being dirty.. What in the world is an ESM?
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2007 GC SRT-8
Hey guys.. I have a 2007 SRT with similar problems.. I'll be pulling away from a light at light throttle (yes, that happens!) or cruising on the highway and I will loose throttle response for a few seconds. I also noticed the transmission looses torque converter lockup.. I used to get a CEL on the dash.. I have since done some massive grounding upgrades under the hood to finalize the foundation for a big audio system upgrade.. Now, I don't get the CEL, but the phenomenom happens.
I have a data interface behind the radio to provide accessory, reverse and illumination output. Happened with this removed.
I have a security/remote start interface in the dash. happened with this removed.
I have the Diablo Trinity 91Oct CAI tune loaded.. Happened with this removed.
I saw above a comment about an ESM being dirty.. What in the world is an ESM?
ESM is the electronic shifter module. It's the part below your shifter knob with P-R-D etc. It tells the computer what gear you're in. They aren't very well built depending on the year of your truck. I just replaced mine. Do you ever get P-R-D all circled when you start it up? Any codes ? if you get lost communication with gear shift module, very good chance your ESM is hooped.
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Procharged D-1 @ 8 psi, SHR trans, Wavetrac rear diff, Converter,PWR Cam, kooks headers, borla exhaust, fore innovations hat, cf from black ops and dual projector headlights/Fogs from DC Customs
Sounds good, good luck on it, Im about to go on a spending spree for mine for christmas I think, thinking maybe U/D pulley, Arrington 90MM TB, cutouts and an X-pipe perhaps.
The Following User Says Thank You to hotrodcalvert For This Useful Post:
Sounds good, good luck on it, Im about to go on a spending spree for mine for christmas I think, thinking maybe U/D pulley, Arrington 90MM TB, cutouts and an X-pipe perhaps.
Will give you an Christmas gift man... Save your money on the 90mm and just get yourself a Cam... Cam is the best bang for the buck....
__________________ Knuckles Mods: Bwoody CAI/FRI Lil boy Cam/ SW Headers/CORSA exhaust/SLP UD Pulley/Black Ops Autoworks Ported Intake Manny/90MM TB/ Johan aka Diablotoona Custom Tune
The Following User Says Thank You to Knuckles For This Useful Post:
Well gang.. Today my PLX Wiki 2 showed up, so I was playing with the Palmer Dashcommand app and decided to check and see if here were any codes in the ECU, even though there was no light? Lo and behold, we have a U0404 - Invalid Data from fear shift control module A in there... Guess I know what's wrong.. Any idea what these suckers cost?
Well gang.. Today my PLX Wiki 2 showed up, so I was playing with the Palmer Dashcommand app and decided to check and see if here were any codes in the ECU, even though there was no light? Lo and behold, we have a U0404 - Invalid Data from fear shift control module A in there... Guess I know what's wrong.. Any idea what these suckers cost?
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, Dual Snorkel Volant Cai, Innovate MTX-L Wideband, Tuna Tooned 
The "Silver Bullet" ---- 2006 Jeep SRT8 - Gone but definitely not forgotten
Linear Mode
