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20 Apr 2004, 10:13 am
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RPM
My rpm is idling to high when stationary (you can hear the motor revving out) but is OK when driving, does this sound like a spark plug problem ?
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20 Apr 2004, 10:21 am
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Welcome, Renae!
No, not likely spark plugs, suspect more the "fast idle" - what used to be called "choke" when you start a cold engine isn't dropping off. How fast is fast? RPM at normal idle is about 750. Fast idle is about 1,000. With A/C on, somewhere in between.
__________________
"Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge." Isaac Asimov" '05 Limited Turbo Lite, (Silver, of course)4-wheel ABS, Sunroof, Spoiler. Mods: E&G Classic grill, K&N FIPK, BTG duals, rear lowered 1.5", LED washer lights, $20 catch can, Aoogah horn, Weatherflectors, Sunroof Deflector, Fuzzy Dice, rear logo flames, rear pinstripe graphic, Gen3 Taillights, rear sway bar, hood struts, Strut bar. Traded in '02 Silver Touring Edition w/87,000 miles
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20 Apr 2004, 10:37 am
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It's idling at 1,000 the problem has only arisen over the last 3 days (I've had my PT for 3 years) rpm prior to this was at 750, it's not a case of being cold as it occurring at all times stopping at traffic lights etc.
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20 Apr 2004, 12:16 pm
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Welcome Renae, [?]
Hope some one here has your answer.
__________________
Kingkole02 Just Cruisin, 03 N/A auto. TE Steel Blue w/ pearl coat & chrome package. Too many extras to list, see pics
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20 Apr 2004, 01:00 pm
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Welcome to the forum Renae!
__________________
 2002 Inferno Red PT Limited Photos and more at: http://www.randgraphics.org/PT_Cruiser/demos/index.htm Mercedes Wiki
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20 Apr 2004, 01:32 pm
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Check that Air Conditioning isn't on - that calls for higher RPM (tho typically not 1,000). If A/C is off, then it's the fast idle (I think) which is controlled by the engine computer. Used to be the fast idle was mechanically set, and sometimes it would stick - "punching" the gas pedal hard and fast would often release it. I don't believe that's the case any longer.
Any other opinions?
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27 Apr 2004, 03:40 pm
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i have a problem with my 03 it has 30 thousand miles on it mostly highway. when i am idleing it is very rough and it does not take off smooth was wondering if anyone knew what the problem was i havent changed the fuel filter yet could this be my prblem??
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27 Apr 2004, 03:43 pm
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Welcome, Eabell.
Doubt it's the fuel filter, and hope it isn't - that's in the fuel tank! Lotsa posts 'bout plugs and wires - I had a "miss" at about 30,000 miles. I put in Champion platinum plugs & Crane wires, and no problems since. I'm now at 73,000 miles.
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27 Apr 2004, 08:57 pm
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Eabell,
At 30K miles you are due for your first spark plug change.
__________________
John & Terry  "His" - 2002 Inferno Red Touring Edition "Hers" - 2003 Electric Blue Limited Edition Del Val PT Cruisers
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30 Apr 2004, 10:40 am
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Hi to all,
Just thought Id share that I found out why my rpm was idling to high, it was the PV hose, it had split. New hose problem solved. Thanks to the nice people that responded to my problem.
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