North American Motoring - 09 R55 won't start P0503 code

North American Motoring (https://www.northamericanmotoring.com/forums/)

- Stock Problems/Issues (https://www.northamericanmotoring.com/forums/stock-problems-issues-188/)

- - 09 R55 won't start P0503 code (https://www.northamericanmotoring.com/forums/stock-problems-issues/335554-09-r55-wont-start-p0503-code.html)

sflowe

Jan 28, 2019 03:33 PM

09 R55 won't start P0503 code

My 09 Clubman 2 wouldn't start this morning. No problems until now. My code reader read 4 codes p0340, p0343, p15E8 and P0503. On the second read, all cleared except P0503. I'm not sure where to start.

guspi76

Jan 30, 2019 01:53 PM

Remove valve cover and inspect the timing chain and it's guides. Looks like you skipped a tooth or two. There should be tension on the chain... If not, you could have bent some valves. Do not crank the engine until you inspect these components....Good luck.

sflowe

Jan 31, 2019 04:29 AM

Thank you! Someone told me that from the code it threw, that it could also be the spark plugs. Do you think I should start with the timing chain first and then the spark plugs?

guspi76

Jan 31, 2019 06:53 AM

Yes, it takes like 10 mins to pull the valve cover and check the timing chain. It’ll be obvious. The plastic guides should look intact. Look into Pelican Parts for pictures of what it should look like. They have a How to step by step on the timing chain.

sflowe

Jan 31, 2019 08:14 AM

Thank you so much! I appreciate your help.

All times are GMT -7. The time now is 08:51 AM.