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no throttle responce almost caused an accident

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21 - 34 of 34 Posts
#21 ·
Mine has done this to me a couple times recently. I usually don't floor it pulling out, but I found myself in a similar situation where I pulled out in front of some traffic, and I wasn't accelerating as fast as anticipated. Once I noticed the drag, I punched it, and even then, it took it's sweet time.

I suppose there may have been gravel or something that caused ESP to engage, but yy guess is the A/C. It was a hot day, and I was pulling out only about a minute after starting the engine. The cab was hot, and the compressor was surely running at that point (or maybe just starting up, causing even more power drain). It has only done this to me on hot days with the A/C running.
 
Discussion starter · #22 ·
picked up the jeep today after the service dept said eveything checked out normal and they could not get the jeep to act up. no fault codes and they reset the computor. seemed ok driving home tonite and i did not notice the surge ..??? ill see how it does the next couple of days and see if the computoer reset did anything to help.
 
#23 ·
Interesting note - I was pulling out over some gravel today, purposely giving it more gas than I probably should, and it allowed the front inside tire to spin a little (heard the scrape of the gravel), and there was no noticeable power loss. So it seems like the ESP did it's job - transferring the power to the tires that grip.

I think the slow start may be an engine power problem, like maybe running the A/C or something else that takes away H.P.
 
#24 ·
awells said:
Interesting note - I was pulling out over some gravel today, purposely giving it more gas than I probably should, and it allowed the front inside tire to spin a little (heard the scrape of the gravel), and there was no noticeable power loss. So it seems like the ESP did it's job - transferring the power to the tires that grip.

I think the slow start may be an engine power problem, like maybe running the A/C or something else that takes away H.P.
Click to expand...
Two things:

1. I think you're confusing ESP with AWD.

2. If ESP engages, shouldn't you know it by seeing the yellow ESP icon on the instrument cluster illuminate?
 
Discussion starter · #25 ·
still doing fine.. funny, the only thing i can think of is that the day i took it to the dealer i had to put gas in it because it was on empty and i put a different brand in. The dealer could not get it to happen and i can't, now that i have it. Maybe it was the gas? I have always used Sheetz gas sense it was new and the day i dropped it off at the dealer was the first time it had a diff brand in it. I am going to try using Shell , Exxon. and or any good name brand and see how it does. If it is the gas , ill have to apologize to my Patriot for accusing it of misbehaving. lol
 
Discussion starter · #26 ·
had it back over a week now and no problems. seems so far just changing brands of gas did the trick. guess my Patriot is a finicky eater. lol
 
#28 ·
i think it has to do with the electronic throttle sometimes too.

my 5-speed caliber does not have abs or esp on it, and every now and then it will act like its dead.
 
Discussion starter · #29 ·
well well, wife and i were pressed for time so we put some East Cost gas in the jeep and what you know it started jerking againg. from now on its Shell or Cheveron no mater what. :doh:
 
Discussion starter · #32 ·
sorry to say the problem is back , have been useing Shell gas and yesterday it started doing the same thing and this time my wife pulled out into traffic and the engine hesitated bad before she could take off. at least now i know its not the gas.
 
#33 ·
gotjep, looks like you have found a 'dead spot' in the ECU's logic. I am new to the Jeep world, so don't throw too many stones, but are the 2.4L's a throttle by wire setup? If so, I will almost bet that you are combining just the right conditions to trigger the throttle body to not respond.

My '06 Legacy with a throttle by wire setup has done this to me ~3-4x in the past 4 years of ownership. I can completely understand your severe pucker factor when this happens, I know my heart ends up in the back seat when it happened to me. It has only happened when I have not come to a complete stop and then attempted to squirt out into a spot in traffic. It has never happened in what I would call a 'normal' situation, only when I am trying to do something risky. Funny thing is, I have run that car at a track day event, 2 hours of on-track time, and it never flinched the entire day. I was fully expecting it to happen and it didn't. Whatever is happening causes the ECU to apparently ignore any current throttle input. In all my cases I pulled my foot off the pedal then stomped it back on and it came back to life.

Best guess is something in the logic latches onto the gas pedal's signal and won't unlatch until the pedal signal goes back to off or whatever the base signal is. I have yet to see any kind of fix for that car, so likely there isn't one for the Patriot either. Only way to get it fixed would be to get a recorder box installed into your vehicle and drive it till it happens again, then the data could be sent back to the programming guru's at Jeep for a looksee. Since those recorder boxes are generally quite pricey and scarce, at least they used to be, it may be difficult to get one in your ride.

I know that once I figured out what was triggering my Legacy's issue, I try and avoid the 'slow and stab it' driving situation. So far I haven't had a pooch moment in over 2 years (knock on wood!). Good luck with yours.
 
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#34 ·
happened to us about 4-5 times except we were just cruzeing along at 55-65 mph the last 2 times and it did it push it to the floor cant get it over 3500 rpm's even downshifting the cvt manually had to pull over and come to a stop and keep reving it till it cames back than it will be months till it happens again
 
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maineiac
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