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2010 Jeep Patriot CVT you guessed it

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9.4K views 15 replies 7 participants last post by  steverinnm  
#1 ·
Okay so I have a 2010 Jeep Patriot with a 6-speed automatic CVT I live in Tennessee on a plateau so we have Hills everywhere I was coming up Cookeville Mountain it's a strong incline that's very stretched out I didn't nothing to run my Jeep hard but I was probably doing three grand the hallway up it maybe 2 or 3 miles after I breach the top my traction control light started flashing and causing my Jeep to jerk forward and backwards but I could still do over 2000 RPMs and it progressively got worse then I started hearing the whining in my transmission the dreaded CVT whine so I ran with my traction control coming on and off until I got off Interstate then I noticed if I turn my traction control off manually from the toggle switch it wouldn't do that jerking thing and I've been driving with my traction control off for a couple weeks now the whining comes here and there but now it seems like my abs has gave away I can definitely feel in the pedal and in the way the Jeep stops my throttle response asked funky sometimes but at other times it feels fine I did have a check engine light it was for a PCM p 1607 something about the internal timer rationally too slow so I deleted the codes and went on about my day and about a week later it popped up again with the same codes except for this time when the OBD2 was actually pulling my codes from the computer my traction control light the light that shows it's engaged the ABS and the brake light all flashed while my code was being pulled and it was for the same p1607 I have no clue what is wrong with this Jeep the only thing that happens when I'm driving is if I don't turn the traction control off if I start to get above to Grand the traction control light will blink and won't let me accelerate until I turn my traction control off but I do not have an ABS light I do not have the traction control light constantly illuminated please someone help
 
#2 · (Edited)
How many miles on your Patriot? Have you ever had the CVT fluid changed? Sure wouldn't hurt. I'd suggest doing it about half the recommended interval, i.e., around 50-60,000 miles.

It may be that your strange noise isn't the CVT but something else. Can you describe that sound?
Is it a high-pitched scream? That probably indicates the transmission is overheating, likely because the fluid needs changing.
Is it a medium pitch hum consistent with transmission speed? If you shift to neutral does the hum go away, and stay away even if you race the engine? That could mean an internal transmission bearing. Conventional transmissions make a similar sound for the same symptoms.
If the transmission is slipping the tach will vacillate at highway speeds or will surge to unreasonably high RPMs at low speed.

I've had my share of tranny problems, but I've never had any warning lights at all -- not on Jeeps, not on other brands. Again, I'm not so sure your problem is the transmission, but I'm not a mechanic. Your traction control light is suggesting the problem is in the TC/ABS system.

One more question: are your tires consistently worn? AWD systems don't like it when you mix new tires and old tires, or different sizes.

Final word of advice: don't leap to the worst case scenario, it could be something cheap and easy. I hope so! Why not start there? Please keep us posted as to the resolution.
 
#4 ·
Sorry I'm just now getting back to you but yes it's most definitely the transmission it's making the wine and I don't have the correct thing to check the level of the transmission fluid but I did use my oil dipstick after I cleaned it very well just to see the color and when I wiped it on a white paper towel it had a brown tint to it but I can't afford to get the transmission fluid changed because that crap is expensive and yes I do have different tires it started when one of my belt broke in one tire at that time all four tires were the same and then the belt broke so I had to get a tire that I could afford so someone hook me up with a tire that was a different size but would fit but the Jeep did start doing the traction control thing bright as the belt busted because it would make my whole Jeep wobble I thought I had the death wobble at first turned out it was just the busted belt but yeah everytime I get in my Jeep I have to manually turn my traction control off or it jerks and stutters like crazy and that traction control light flashes but my abs is out now too I can definitely feel it in the pedal and the way I stop but I have no abs light on or nothing and my Jeep is not throwing codes for anything other than that PCM timeout
 
#5 ·
And I can't remember if I mentioned it above but whenever I put my key in the on position but don't start the electronic throttle-control I think it is the lightning bolt with the bars around it stays on longer than any of the other lights all my other dash lights go off before that one and it stays on a good 5 to 10 seconds after they go out but does not come on after I started or while I'm driving
 
#6 · (Edited)
Please forgive me for sounding negative, but it seems to me your Patriot is suffering from under-investment. You've gotta do a few things to keep it in proper working order.
  • Proper size tires are a basic for any vehicle, but especially AWDs.
  • So is changing the fluids: engine oil, tranny fluid, coolant, etc.

Your Patriot has been complaining since you put the wrong tire on there -- that light has been telling you something. By kicking itself out of AWD its probably kept you from harming it, but I'm not so sure. If your Patriot is 8 years old, the CVT fluid should have been changed by now -- it may be too late for that. Changing it now may be like locking the barn door after the horse has been stolen. The old adage is true: an ounce of prevention is worth a pound of cure.

Sooner or later, if it has tires, it will cost you money. Its time.

If you get on these things right away you may be able to save it.
  • Correct tires might end the complaints your AWD/ABS system is giving you.
  • Even just a CVT fluid change (w/out the filter) might end the whining. Really it's better to the change the filter, too.
 
#9 ·
Your tires are different sizes. Even if they are marked the same one is new and the others are not. In an all wheel drive vehicle it will see the wheels spinning at different speeds and try to compensate. But it can't, because the tires are different. You need to replace the tires and I bet it all goes away. If you continue to drive it the way it is you will damage the drivetrain. Either the differentials, the PTU, or the trans.
The traction control lights are not because of your transmission. The CVT issue is an overheat issue. You will get a CVT overheat light, the trans will whine really loudly, and the jeep will not rev over a certain RPM. You have a traction control issue that is because you are running a tire that is a different size than the rest. Again.... CONTINUING TO DRIVE YOUR VEHICLE IN THIS CONDITION WILL DESTROY ONE OR MORE COMPONENTS OF THE DRIVETRAIN. Go to a used tire shop and get four tires that are all the same, if you can't afford new. The throttle body light on your dash staying on longer than the rest is normal. Mine does that too.... If you start the engine it goes out correct?
 
#10 ·
You can keep driving it as is until the tranny dies, or park it and use an alternate means to get to work until you the the $$ to fix it properly. Do you have coworkers/friends/relatives who have a similar commute? If so you may be able to get a ride to work until you saved enough to repair your Patriot. Is there public transportation in your area that would work? Or is work close enough to bicycle? I know some hardcores who biked 20 miles to work no matter what the weather. As others pointed out, if you continue to drive it as is, you'll probably make a bad situation worse. This reminds me of an old Amish quote: "A car will make you poor and keep you poor". More than a little truth in that statement.
 
#13 ·
Smaller? I think that's a larger size; certainly a fat tire. What size are you running now?

Generally speaking, too far oversize will cause rubbing. Undersized will diminish your fuel economy; so will fat tires.

In any event different sizes will produce speedometer and odometer errors. Consider, too that oversized tires will put more stress on your ball joints (notorious Patriot weak spots) and your acceleration will be slower and you'll shift more on hills since you're effectively raising your transmission ratio.
 
#14 ·
Stock 17-inch size for most/all pre-2011 models is P215/65R17. I ran P225/60R17 for a few years, which was a couple millimeters smaller and therefore I have maybe 100-200 extra miles on my odometer for the ~40,000 I had the tires for. P225/55R17 will add even more miles to the odometer(and speedometer) than what you're actually doing, but won't actually hurt the vehicle. There's tire size comparison calculators on the internet if you want a closer look. I think tirerack has the usual "go-to" version of this.
 
#15 · (Edited)
I must correct myself. I must have misread your post -- I thought it was 275 not 225. Your size suggested size is smaller. No, I can't imagine it will hurt anything. I agree with Rosso. Your speedometer will also be significantly off. A dealer can correct that but I doubt you are eager to put out money for that.

You can use an online tire size calculator for yourself and it will probably give you the % difference. I've run off sizes that gave me a 7-8% error. The good news is that with smaller tires your speedometer will show you going faster than you really are so the smokies are lest likely to bother you. :)