Joined
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154 Posts
Hello,
2 different vehicles at question.
1ST- 2005 ford focus zx5 SES 2.0LTR duratec, 5spd. 135,000KMS mine
2ND- 2007 ford focus zx4 SE 2.0LTR duratec, auto. 180,000KMS brothers.
2ND car has experienced high idle, with code P0507. PCV was inspected and checked, looks ok. Replaced IACV, cleared code, disconnected battery for 10 mins, pump brakes to drain any current left, ran it in idle, turning on all accessories and all seemed fine.
Fast forward 2 weeks (today),check engine light is back on, high idle symptoms are back, stated by brother. i didnt notice it when i started it and ran it. Code is back.
One difference i did notice was the noise from under the hood, a louder tapping noise, that was worse on decelleration from revving. I inspected both mine and his vehicle at the same time watching the intale runnner shaft.
1ST car, the intake runner shaft would not move unless i really snapped the the throttle on it, im assuming it opens up in the higher RPM range from what i breifly read. Somewhere in the 4700 range.
2ND car, as soon as i TOUCHED the throttle i can see the IMRC shaft open?
Both vehicles when off, the shaft is upwards, once the car is started the shafts are downwards, when the shaft moves while vehicle is on, its moving from downwards to upwards.
my question is why would it be opening so early? Loud tapping is a indication of bad/broken IMRC, that i know. Almost a valve tap noise. But what would cause it to open so early?
Could that be why his idle is erratic on the higher side of the RPM'S would it throw a p0507 if IN-OP? He said he had lots of trouble keeping it stopped at red lights because the high idle is that bad.
2 different vehicles at question.
1ST- 2005 ford focus zx5 SES 2.0LTR duratec, 5spd. 135,000KMS mine
2ND- 2007 ford focus zx4 SE 2.0LTR duratec, auto. 180,000KMS brothers.
2ND car has experienced high idle, with code P0507. PCV was inspected and checked, looks ok. Replaced IACV, cleared code, disconnected battery for 10 mins, pump brakes to drain any current left, ran it in idle, turning on all accessories and all seemed fine.
Fast forward 2 weeks (today),check engine light is back on, high idle symptoms are back, stated by brother. i didnt notice it when i started it and ran it. Code is back.
One difference i did notice was the noise from under the hood, a louder tapping noise, that was worse on decelleration from revving. I inspected both mine and his vehicle at the same time watching the intale runnner shaft.
1ST car, the intake runner shaft would not move unless i really snapped the the throttle on it, im assuming it opens up in the higher RPM range from what i breifly read. Somewhere in the 4700 range.
2ND car, as soon as i TOUCHED the throttle i can see the IMRC shaft open?
Both vehicles when off, the shaft is upwards, once the car is started the shafts are downwards, when the shaft moves while vehicle is on, its moving from downwards to upwards.
my question is why would it be opening so early? Loud tapping is a indication of bad/broken IMRC, that i know. Almost a valve tap noise. But what would cause it to open so early?
Could that be why his idle is erratic on the higher side of the RPM'S would it throw a p0507 if IN-OP? He said he had lots of trouble keeping it stopped at red lights because the high idle is that bad.
