Dacvolvo
Saturday 22nd May 2010, 16:01
Hey Folks
Last year I posted this thread up when I noticed some strange idling on my Volvo C70 (2.5 ME7 with manual box) - http://www.vpcuk.org/forums/showthread.php?t=21018
A full year has passed and for all that time, my C70 has continued to do the strange idle dipping thing. It's never caused me any concern until a few days ago... I was approaching a roundabout and I had to give-way to a car that was already traversing said roundabout.
As I dipped my clutch pedal and came to a stop, the steering suddenly became very heavy. I looked at my dash and all the lights were on - the engine had cut out whilst I was coming to a halt.
She started straight away and I drove on. A few minutes later, the exact same thing happened - the revs dropped to 200 RPM when I dipped the clutch pedal and the engine cut out... Again she started up straight away and idled perfectly at 900 RPM.
I checked a couple of websites and forums and then checked my Engine Crank Sensor. It had a little bit of dried in oil on it - like a little smear of tar. I used a cotton bud to clean it and about 20 seconds later, it was gleaming. I put the sensor back onto the engine and for the last 7 days now, my C70 hasn't once dipped below 900 RPM.
It's unbelievable that such a small thing could cause such a driving irritation for over a year.
Anyway, if you're having the same problems and want to give this a try to see if it'll cure your idle problems, here's how:
http://img.photobucket.com/albums/v85/Dacvolvo/C70/EngineCrankSensor.jpg
The Engine Crank Sensor is circled in yellow in the above photo - you can see that it's just the one little bolt that holds the black plastic sensor plug in position... Simply remove the bolt and then gently lift the sensor plug out. Use a cotton bud or soft cloth to wipe it clean and then put it back into the engine and replace the bolt.
As I said above, for the last 7 days now, my C70 hasn't once dipped below 900 RPM. I've also just took her for the dreaded MOT today and she passed first time with no problems or advisories whatsoever.
:D
Last year I posted this thread up when I noticed some strange idling on my Volvo C70 (2.5 ME7 with manual box) - http://www.vpcuk.org/forums/showthread.php?t=21018
A full year has passed and for all that time, my C70 has continued to do the strange idle dipping thing. It's never caused me any concern until a few days ago... I was approaching a roundabout and I had to give-way to a car that was already traversing said roundabout.
As I dipped my clutch pedal and came to a stop, the steering suddenly became very heavy. I looked at my dash and all the lights were on - the engine had cut out whilst I was coming to a halt.
She started straight away and I drove on. A few minutes later, the exact same thing happened - the revs dropped to 200 RPM when I dipped the clutch pedal and the engine cut out... Again she started up straight away and idled perfectly at 900 RPM.
I checked a couple of websites and forums and then checked my Engine Crank Sensor. It had a little bit of dried in oil on it - like a little smear of tar. I used a cotton bud to clean it and about 20 seconds later, it was gleaming. I put the sensor back onto the engine and for the last 7 days now, my C70 hasn't once dipped below 900 RPM.
It's unbelievable that such a small thing could cause such a driving irritation for over a year.
Anyway, if you're having the same problems and want to give this a try to see if it'll cure your idle problems, here's how:
http://img.photobucket.com/albums/v85/Dacvolvo/C70/EngineCrankSensor.jpg
The Engine Crank Sensor is circled in yellow in the above photo - you can see that it's just the one little bolt that holds the black plastic sensor plug in position... Simply remove the bolt and then gently lift the sensor plug out. Use a cotton bud or soft cloth to wipe it clean and then put it back into the engine and replace the bolt.
As I said above, for the last 7 days now, my C70 hasn't once dipped below 900 RPM. I've also just took her for the dreaded MOT today and she passed first time with no problems or advisories whatsoever.
:D