DEAR CAR TALK: Our 2014 Jeep Cherokee shuts off when making right hand, uphill turns. First and foremost, this is dangerous.
The dealer says that when oil doesn't get to the top half of the engine, the engine will stall. They said we weren't changing our oil on time. They did an oil consumption test and said we were losing four quarts every 5,000 miles.
I submitted a complaint to Safercar.gov and the NHTSA about this problem. While I was online, I found that there are other Jeep owners with the same problem.
What's your take on this?
DEAR RICK: My take is that I'm glad I'm not the owner of your 2014 Jeep Cherokee. It's not only unsafe, it's also going to be difficult to diagnose. Not to mention difficult to sell.
Jeep has had a raft of complaints about stalling Cherokees. And as far as we can tell, they haven't figured it out yet.
A bunch of people report that Jeep is blaming low oil level. But you'd have to be very low on oil to cause the engine to stop running. I'd say you'd need to be a minimum of two quarts down.
According to Jeep's own consumption test, you're losing a quart every 1,250 miles. That's not a ton of oil loss. As long as you check it and add a half-quart every 600 miles or so, you'll never get anywhere near low enough to cause your engine to stall.
In fact, if you've been driving the car with your crankcase full and it's still stalling, that tells me the oil level has nothing to do with it. So, we're not buying the oil level explanation.
The 9-speed transmission in this car was also problematic. That's another possible culprit, along with the transmission wiring harness.
You can check all of your wiring harnesses by wiggling them while the engine is running. If you can get the engine to stall, you've found the source of what is an electrical problem.
The other major problem this vehicle has is with something called the Totally Integrated Power Module, or TIPM. It's kind of the electronic brain in this car. Like Hal from 2001: A Space Odyssey. That could also be the cause of the stalling.
If your dealer is willing to work with you, ask him to install a new TIPM on a trial basis and see if that solves your problem. If it does, you can take out the requisite home equity loan and buy the thing. If not, you can give it back, and go back to wiggling wiring harnesses and crossing your fingers on right turns. Especially when they lead across railroad tracks.
We wish you luck, Rick.
DEAR CAR TALK: How can I stop rainwater from getting on the floor behind the front passenger seat of a 2009 Lincoln Town Car?
No other place gets wet. Actually, once I found that some water had seeped into the front seat floor after a two-day rainfall, but I think it was overflow from the back seat area.
DEAR MARGO: There are three prime suspects in your case.
One is the two-liter bottle of Evian water that you left under the seat three years ago. But, if we eliminate that possibility, the prime suspect is a clogged moon roof drain.
In order to delay moon roofs from leaking (they all leak eventually), manufacturers create water channels around the moon roof. Those channels usually have four drains, one in each corner. Those drains are attached to tubes that run down inside the roof pillars and drain underneath the car.
Over time, one of several things can happen to screw up this wonderful feat of engineering. Twigs, leaves and squirrel droppings can clog up the drains. The water has nowhere to go but into the headliner and then into the passenger compartment of the car.
The other thing we've seen is that the tube can become disconnected and actually separate from the drain. In that case, the water does the same thing and obeys gravity.
So, I'd ask your mechanic to check your moon roof drains. He'll test them and see if water is draining properly. If not, he can try to gently blow them out with compressed air, which may fix the problem.
If your moon roof drains are all working perfectly (which they're probably not), the next suspect would be the rubber seals around the rear passenger door. If part of the seal that's designed to keep water, wind and noise out got torn or damaged, that could allow water to seep in around that door and get on the floor back there.
It's going to be one of those two things, Margo, so get them checked out. Then you can write back to us and ask us how to get a horrific smell out of a 2009 Lincoln Town Car that had a long-term water leak.
Ray Magliozzi dispenses advice about cars in Car Talk every Saturday. Email him by visiting:
HomeStyle on 08/03/2019
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