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Very Very Slow Acceleration
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mike.jones
New User
Jul 6, 2016, 3:35 PM
Post #1 of 5
(1718 views)
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Very Very Slow Acceleration
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I came off the turnpike the other day stopped at a light and my car, 2006 Hyundai Elantra 175000 miles, started rolling backwards. I put my foot on the gas and there was no movement. Put the car and park and it wouldn't start. I pushed it into a gas station and the attendant (attendant, not mechanic there was no service station) changed the oil and added some coolant. The car then started up fine and I was able to drive a quarter mile to work. When I was driving home I immediately noticed that there was a change in acceleration. It takes forever for the car to speed up... Pedal to the floor and it is lagging greatly. It seems to be going up to 4500 rpms just to reach 40 mphs at a slow pace. Once the car gets up to 60 mph the rpms drop to normal. I haven't gone faster than 60 mph in it since this happened, but it seems to handle fine at that speed. The issue is getting up to that speed. I don't know if it is related, but the air conditioning is very weak since all this happened. I have to turn it off when I'm accelerating now. I've been planning on buying a new car soon, but I want this one to last just a little while longer. Any ideas would be greatly appreciated.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 6, 2016, 3:55 PM
Post #2 of 5
(1714 views)
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Re: Very Very Slow Acceleration
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Sounds like it might not be shifting on time. Have the computer scanned for any stored trouble codes and post them here.
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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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mike.jones
New User
Jul 6, 2016, 5:44 PM
Post #3 of 5
(1707 views)
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Re: Very Very Slow Acceleration
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I had it scanned and the codes that came up were p0011 p0420 and p 0016
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 6, 2016, 6:00 PM
Post #4 of 5
(1702 views)
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Re: Very Very Slow Acceleration
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The P0011 and P0016 are both camshaft correlation codes. You said the oil change made a different and those actuators operate on oil pressure so you could have a problem with the oil or the camshaft actuator solenoid.
The P0420 is a bad catalytic converter which could develop into a plugged converter and that also could give you those symptoms.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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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Discretesignals
Ultimate Carjunky
/ Moderator
Jul 7, 2016, 4:34 AM
Post #5 of 5
(1693 views)
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Re: Very Very Slow Acceleration
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Has any work been done on the engine prior to this problem?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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