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2008 AWD 3.6L
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15 Posts
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Members, really need some help. 2008 SRX 3.6L 185k. Just put in new timing chains and she typically runs absolutely perfect. Have it at dealership and have wasted over $500 on buying used ECM's and having them program, to no avail.

Every once in a while, when starting the car it runs really rough. Throws codes for multiple cylinder misfires, misfire 2,4,6, misfire 1,3,5 etc. I can shut her down, clear the codes and it starts and runs perfectly. Drove it to work for 2 weeks with no concerns. Wife starts up next day and throws codes while the our van was in the shop. Get home, clear codes and runs perfectly again.

Has anyone experienced such a problem, or can you provide any advice?
 

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2019 XTS Luxury AWD, 2004 SRX N* AWD (gone)
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780 Posts
Perhaps look at the freeze frame to see what the conditions were when the misfire happened so it can point you in the right direction. Also, maybe there is some factor such as humidity that is affecting the coils and other wiring.
 
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