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GAS PEDAL LOSES POWER WHEN AC IS ON.
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JPerez100
New User
Jun 14, 2023, 5:25 PM
Post #1 of 9
(569 views)
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GAS PEDAL LOSES POWER WHEN AC IS ON.
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So I started noticing that my car's gas pedal would occasionally stop working even if I pushed it down to the floor. I would have to pull over and restart the car for it to work again. Then one day it happened and I instinctively shut off the ac to try to see where I was going to pull over and the peddle started working again immediately. So I didn't use my ac for a whole week straight and my car never had a problem with losing power, so now when I use my car, if I have ac going I am ready to shut it off if I lose power. Obviously, I would like to be able to drive without the worry of whether my car will do this again so I am looking for help to figure out what the exact problem is.
My car is 2004 Nissan Altima 2.5
(This post was edited by JPerez100 on Jun 14, 2023, 5:47 PM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 14, 2023, 5:45 PM
Post #2 of 9
(565 views)
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Re: GAS PEDAL LOSES POWER WHEN AC IS ON.
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The term "loses power" is pretty subjective. It's normal for AC to add load to some degree but it shouldn't be real noticeable.
The first thing I would do is have the computer scanned for any stored codes and go from there.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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JPerez100
New User
Jun 14, 2023, 5:51 PM
Post #3 of 9
(561 views)
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Re: GAS PEDAL LOSES POWER WHEN AC IS ON.
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Would I do that with the same machine used when the check engine light comes on?
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 14, 2023, 5:53 PM
Post #4 of 9
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Re: GAS PEDAL LOSES POWER WHEN AC IS ON.
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Yep, that's it.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 15, 2023, 1:15 AM
Post #5 of 9
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Re: GAS PEDAL LOSES POWER WHEN AC IS ON.
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Factor any recent work that may have required anything A/C such that it needed to be discharged + filled again. Done wrong could be the cause also not sure that would show a warning code for that.
Get going on this if it busted a belt you may not be able to use the car at all!
Tom
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JPerez100
New User
Jun 16, 2023, 1:55 PM
Post #6 of 9
(454 views)
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Re: GAS PEDAL LOSES POWER WHEN AC IS ON.
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a few months back I did add freon but it didn't give any probs and worked fine after. other than that I haven't done anything to the car.
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JPerez100
New User
Jun 16, 2023, 1:56 PM
Post #7 of 9
(453 views)
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Re: GAS PEDAL LOSES POWER WHEN AC IS ON.
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the scan doesn't show anything.
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Hammer Time
Ultimate Carjunky
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Jun 16, 2023, 2:02 PM
Post #8 of 9
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Re: GAS PEDAL LOSES POWER WHEN AC IS ON.
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You car has an electronic "Drive by Wire" throttle system so if it is cutting out there HAS to be codes stored in the computer. Your code reader is probably insufficient to access these particular codes.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 16, 2023, 2:57 PM
Post #9 of 9
(444 views)
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Re: GAS PEDAL LOSES POWER WHEN AC IS ON.
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IDK defaults for A/C I mentioned just by all odd cooler then and you added by some color gauge - none accurate if you knew how to do that.
Not likely car seems old should shut down A/C if way out of spec on the high side or so out of ranges plain not work no matter what you request?
This "nothing" throttle response is probably something else needs a better scan, IDK why most vehicles work A/C if defog/defrost is used unsure which cars OFF really means it can't even try?
Tom
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