car idles at 500rpm at normal temp, little bit of rattle.

wallc777 · 06-29-2006, 09:13 AM

this just happened this morning and last night. when i start the car up cold, the rpm is high, then it slowly goes down as the engine is warmping up. once warmed up, i drive it a few streets down and i feel a bit of rattle on a red light, and it just goes away, the rpm is down to 500. is this normal? if not, fuel filter or oil filter? - Mike

MattG · 07-03-2006, 09:58 PM

Doesn't sound right.
The first thing I would suggest is to disconnecting the battery to reset the ECU.

HELL_ON_WHEELS · 07-06-2006, 09:10 PM

I had the same thing happen to me it ended up that one of my ignition coil packs was bad.

At first it was a little rattle here and a little rattle there then one morning the car just sputtered and the idel was really rough took her down to my shop an around hour and $100.00 later she was running smooth again.

If I were you just take her down to a shop you truyst and have them look at it. hope this helps
,Morgan

P.S. my S never displayed a engine code or check engine light

06-29-2006, 09:13 AM	#1 (permalink)
wallc777 Member Join Date: Aug 2005 Posts: 47	car idles at 500rpm at normal temp, little bit of rattle. this just happened this morning and last night. when i start the car up cold, the rpm is high, then it slowly goes down as the engine is warmping up. once warmed up, i drive it a few streets down and i feel a bit of rattle on a red light, and it just goes away, the rpm is down to 500. is this normal? if not, fuel filter or oil filter? - Mike

07-06-2006, 09:10 PM	#3 (permalink)
HELL_ON_WHEELS Senior Member Join Date: Apr 2006 Location: SoCal Posts: 628	I had the same thing happen to me it ended up that one of my ignition coil packs was bad. At first it was a little rattle here and a little rattle there then one morning the car just sputtered and the idel was really rough took her down to my shop an around hour and $100.00 later she was running smooth again. If I were you just take her down to a shop you truyst and have them look at it. hope this helps ,Morgan P.S. my S never displayed a engine code or check engine light __________________ "Drive it like you stole it"

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07-03-2006, 09:58 PM	#2 (permalink)
MattG Senior Member Join Date: Sep 2003 Location: Sydney, Australia Posts: 363	Doesn't sound right. The first thing I would suggest is to disconnecting the battery to reset the ECU.