Rough engine note whilst Idle

Dan_Somerset · 7th October 2016, 11:12

My 2.5 v6 has started to sound rough whilst the engine is idle, happened overnight about a week ago, no engine warning lights until this morning. error code P0444 which I believe to be a Purge valve fault.

Does that cause the engine to misfire from cold? as I didn't think the purge valve kicked in until the engine was warm.

Anyway (off topic) back in August my exhaust silencer and section of pipe fell off whilst on holiday so the only option I had was to go to Kwik Fit (out of options whilst camping), they ordered in a part and fitted it the next day and the car was driving lovely and was very silent compared to the old one. Done about 400 miles since.

Just wondering if there could be a link between the two, and kwik fit didn't fit the right part as when I search the part number on the receipt I can find no information about it.

Exhaust sounds ok underneath and at the rear of the car but the inside and with the bonnet open the car just doesn't sound right.

murphyv310 · 7th October 2016, 11:29

Try unplugging the purge valve and see if that makes any difference.

Dan_Somerset · 8th October 2016, 07:05

Done, does seem smoother and more responsive. New part ordered. cheers

7th October 2016, 11:12	#1
Dan_Somerset Avid contributor 75 Saloon, 2.5 V6 Auto Conn Join Date: Mar 2015 Location: Taunton Posts: 106 Thanks: 6 Thanked 11 Times in 9 Posts	Rough engine note whilst Idle My 2.5 v6 has started to sound rough whilst the engine is idle, happened overnight about a week ago, no engine warning lights until this morning. error code P0444 which I believe to be a Purge valve fault. Does that cause the engine to misfire from cold? as I didn't think the purge valve kicked in until the engine was warm. Anyway (off topic) back in August my exhaust silencer and section of pipe fell off whilst on holiday so the only option I had was to go to Kwik Fit (out of options whilst camping), they ordered in a part and fitted it the next day and the car was driving lovely and was very silent compared to the old one. Done about 400 miles since. Just wondering if there could be a link between the two, and kwik fit didn't fit the right part as when I search the part number on the receipt I can find no information about it. Exhaust sounds ok underneath and at the rear of the car but the inside and with the bonnet open the car just doesn't sound right.

7th October 2016, 11:29	#2
murphyv310 This is my second home Hyundai i10 998cc Join Date: Mar 2012 Location: Kilmarnock Posts: 6,602 Thanks: 2,088 Thanked 2,298 Times in 1,349 Posts	Try unplugging the purge valve and see if that makes any difference. __________________ Cheers from Trevor MM0KJJ

8th October 2016, 07:05	#3
Dan_Somerset Avid contributor 75 Saloon, 2.5 V6 Auto Conn Join Date: Mar 2015 Location: Taunton Posts: 106 Thanks: 6 Thanked 11 Times in 9 Posts	Done, does seem smoother and more responsive. New part ordered. cheers