And at the moment I'm not to fond of dealer techs. At least not the ones that always seem to touch my vehicles, I know there are some great ones out there.
Just sharing this experience since I know there are some other WK2 owners out there, really. My wife's 2011 Grand Cherokee (WK2) went in about 4 months ago for the dreaded TIPM fuel pump relay failure recall. The relay had actually failed a long time ago, but I'd implemented the Vertical Visions hack to keep the car driveable (in a nutshell, power the fuel pump from the switched 12V fuse for the power outlets). The recall "fix" isn't a lot more elegant- they just splice in a big honkin old-style general purpose relay external to the TIPM (you can see the text of the Star Case which evolved into the actual recall here)
After getting the actual recall done, there were no issues... for a whole 4 months until the fuel pump started getting intermittent again. This really hacked me off- I'd have been irritated enough if it were my car, but when it strands my wife and (worse) stalls in rush hour with her, I get really annoyed. Every time it would happen, it would be working again by the time I got there. I chased a few dead ends, even for a while deciding that the line driver in the PCM that pulls-down to provide ground when the engine is running and then lets the ground of the relay float high if the engine stalls (safety feature) was the problem.
By a bit of good luck and by tracing back all the wiring that the dealership would have had to touch to perform the recall, I found that if I wiggled the relay feed from the TIPM brown connector C5, I could get the test light to flicker off. Aha.
When I removed the connector, there were no bad crimps or connections. FINALLY, when I looked at the front face of the connector where the female contact insert is plugged in, something looked "different" from all the other pins. So I pulled the insert out of the connector block and found what's pictured below. I think the dealer tech dug it out with a claw hammer, rather than carefully pressing the release tab (remember that pink wire is 20-gauge- smaller than a toothpick). The tool marks give it away, and the internal spring was collapsed flat so the contact was loose. I bent it back into the correct shape, and all has been well. I do need to find out the part # for that pin and just replace it with a brand new one, though. If anyone has access to it, PM me. TIPM Connector C5 (brown), pin 38.
Just sharing this experience since I know there are some other WK2 owners out there, really. My wife's 2011 Grand Cherokee (WK2) went in about 4 months ago for the dreaded TIPM fuel pump relay failure recall. The relay had actually failed a long time ago, but I'd implemented the Vertical Visions hack to keep the car driveable (in a nutshell, power the fuel pump from the switched 12V fuse for the power outlets). The recall "fix" isn't a lot more elegant- they just splice in a big honkin old-style general purpose relay external to the TIPM (you can see the text of the Star Case which evolved into the actual recall here)
After getting the actual recall done, there were no issues... for a whole 4 months until the fuel pump started getting intermittent again. This really hacked me off- I'd have been irritated enough if it were my car, but when it strands my wife and (worse) stalls in rush hour with her, I get really annoyed. Every time it would happen, it would be working again by the time I got there. I chased a few dead ends, even for a while deciding that the line driver in the PCM that pulls-down to provide ground when the engine is running and then lets the ground of the relay float high if the engine stalls (safety feature) was the problem.
By a bit of good luck and by tracing back all the wiring that the dealership would have had to touch to perform the recall, I found that if I wiggled the relay feed from the TIPM brown connector C5, I could get the test light to flicker off. Aha.
When I removed the connector, there were no bad crimps or connections. FINALLY, when I looked at the front face of the connector where the female contact insert is plugged in, something looked "different" from all the other pins. So I pulled the insert out of the connector block and found what's pictured below. I think the dealer tech dug it out with a claw hammer, rather than carefully pressing the release tab (remember that pink wire is 20-gauge- smaller than a toothpick). The tool marks give it away, and the internal spring was collapsed flat so the contact was loose. I bent it back into the correct shape, and all has been well. I do need to find out the part # for that pin and just replace it with a brand new one, though. If anyone has access to it, PM me. TIPM Connector C5 (brown), pin 38.
