High revs at startup

afcobra01

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I have a question about my 01 cobra that I just bought. Upon first start up of the day, the rpms go to almost 2500 then settle back down to around 1200 for a normal warm up and then go to around 800. This is my first cobra so I wondered if this was normal. Stock except for cai, cat back and performance tune. Runs great other wise. No surging when driving ect.. Thanks for the help.
 

jacker1991

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You mean that it hits 2.5k RPMs when you start it up or that it stays there for a few seconds?
 

afcobra01

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Thanks for the reply. Just thought that it seemed high but yeah it goes back down right away. Not a lot of oil up in there at that time. Love the car. Lots of get up and go. 4.10 in the rear. Still irs. Ride is really good.
 

Cobra_GATA

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I had the same question as well. Glad it is normal

However, when I have the AC running, the car surges like crazy. How do i address that?

Posted via Topify using iPhone/iPad
 
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MrSteve

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welcome guys, make sure you post some pics somewhere for us to look at.

Cobra_GATA, does it surge at idle or while driving?
 

jacker1991

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Idle and it seems while driving as well.

Posted via Topify using iPhone/iPad

You might need to refill your AC(R134-a), check for leaks while you are at it. Make sure that the AC compressor is working how it should after you refill your coolant if needed. I had a leak in my system and had the same problem as you. Since I was low on freon my compressor would go on/off every few seconds making the car surge every time it would go on/off. I am a bit tired so I hope you can understand what I am trying to say. Will check again tomorrow in case I need to clarify.

Mike out! :coolman:
 

afcobra01

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Cobra Gata, nice looking car. I will try to post some pictures soon. Mine is Zinc yellow and a convertible. Good luck with the AC system. Mine operates well. Still not crazy about the high RPMs at startup. I guess I will have to live with it.
 

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