Help refilling intercooler circuit on CL600 (S600) M275
04-20-2017, 08:43 AM
#51
Super Member
I replaced the tandem pump. Removed the engine fan and the driver side air box for access. Now #7 misfire comes back like crazy. Didn't interrupt the coolant circuit during the process. What's just happens?
04-22-2017, 02:33 PM
#53
Super Member
I sprayed CRC electronics cleaner onto the ground wire and the coil harness. The problem disappeared for 2 days. It came back today so I'm going to try the DeoxIT.
Last edited by DrDoe; 04-22-2017 at 06:43 PM.
08-25-2018, 04:51 AM
#54
Did you every figure this out? I did and have the same exact thing...#7? BTW, how did you get the fan shroud off without removing the coolant lines?
08-28-2018, 04:55 PM
#55
Super Member
It was the restricted coolant flowing problem. One nipple broke and stuck inside coolant hose. I was lucky on finding that broken nipple.
The fan can be removed through the bottom route. Keep wiggle and eventually it will give away.
The fan can be removed through the bottom route. Keep wiggle and eventually it will give away.
08-28-2018, 05:33 PM
#56
Not sure what you mean by a nipple causing the restriction...can you explain further or show what you are talking about. Also, thanks...did not know the shroud can be taken out from the bottom. I still have this #7 misfire and can't figure it out. I do know the engine cooling fan is not turning on any longer even though I have proper voltage from the plug that powers it. I ordered a new one and hope that it will fix this #7 misfire, as I believe it can cause such a misfire. Even so, I would like to understand better about your solution.
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Ed P (11-15-2021)
08-28-2018, 07:32 PM
#58
There was a piece of plastic stuck inside the hose at the marked location Attachment 417674
