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rpms jump and stay there

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Old 03-02-2008, 10:58 PM
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Default rpms jump and stay there

when i push my clutch in my rpms jump to like 1500 and take a super long time to go down to idle.. what is going on?
Old 03-02-2008, 11:03 PM
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vvvvvacuum leak
Old 03-03-2008, 06:18 AM
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Yep, it is most certainly a vacuum leak. I had this same issue. Mine ended up being the rubber on the PCV valve actually dry rotted and had a crack in it. Just run your fingers on the hoses you can easily get access to with the vehicle started and you will find it when you finger sucks to the hose. You might be able to just hear the leak too.

Good luck.
Old 03-03-2008, 07:12 AM
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you unplug your battery or anything lately?
your car might have to relearn to idle, start it up and let it idle for about 5-10 min then drive it and see if it still does it.
Old 03-03-2008, 07:26 AM
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I Had The Same Thing Happen After It Got Tuned. Car Drove Fine And Idled Fine Then I Picked It Up From The Tuners And The First Day I Drove It Was Fine The Next Day I Would Come To A Stop Light And The Rpms Would Stay At 2k I Didn't Touch Anything Under The Hood. If Its A Vacumm Leak Were Would The Most Common Spot Be?
Old 03-03-2008, 09:02 AM
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I got the same issue, but mine will surge up (like 1500 or so) at red light or stop sign. But not all the time, just most of the time. I was told possibly a leak, but I don't know where to look to try to find the leak.
Old 03-03-2008, 09:58 AM
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The Only Problem I See Is If I Had A Leak Dont You Think It Would Have Done That As Soon As I Got The Car Back From The Tuners, Not 4 Days Later?
Old 03-03-2008, 11:27 AM
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mine started way after the tune also...
Old 03-03-2008, 07:22 PM
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Mine does the same thing, up to about 1500+ rpm when coming to as stop but will drop back down to about 850-900~ once stopped....only started after vehicle was tuned...any tuners run into this? don't have any leaks or codes stored/ engine light on
Old 03-06-2008, 04:43 PM
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hmmm... well then i can have another question answered.. when i took my a/c system out there are two silver things i took hoses off that fo into the firewall ( i think thats what its called.. under the wiper cowl) and i didnt plug them or anything... and my battery did die bc i didnt drive the car but i drove it for like a week and never fixed itself..
Old 03-06-2008, 05:10 PM
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If is is not a vacuum leak it is probaby the TPS throttle posision sensor..$30 part.
Old 03-06-2008, 09:30 PM
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how can i tell if its a vacuum leak? and what should i do with those a/c lines...
Old 03-06-2008, 10:14 PM
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Originally Posted by m6speed
your car might have to relearn to idle, start it up and let it idle for about 5-10 min then drive it and see if it still does it.

try this before you go out and buy stuff
Old 03-08-2008, 03:05 PM
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i drove it all yesterday and it didnt stop...




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