2001 AWD w/ 127k.

Just got timing belt, trans flush w/ oil change on Friday. On Sunday (48 hrs later), at idle it’s now super rough.

Had it towed and they’re telling me it’s the #4 cylinder misfire. They said they’ve checked components and they all look good and can’t figure out the issue.

Could this be related to timing belt install?

 

Now a days, mechanics hardly ever check the timing of the spark because it is all controlled by the ECM. But, the ECM can only do so much. The timing belt change probably is the reason but hard to tell from a keyboard in the ether. Wish you luck in chasing the fix for this one.

 

Ouch. You should consider doing a compression test, and if it’s good getting the valves adjusted. If the compression in cylinder 4 is bad, you may have a burnt valve.

There is a TSB out for 1st generation Honda’s about cylinder 4 misfires from tight exhaust valves that you might want to look up.


@avisitor, Hey I presume you’re the same person over on the crv owners website. Good to see you over here also.

 

@ajchien, yes, it is me. And nice to see you too here. This place really could use a smart guy like you.

 

have you looked at the #4 spark plug check to see if the center electrode houshing has not slipped not damaged. check to see if the coil pack is not damage or not working.

 

yeah, sorry about the post I made earlier. I didn’t read the OP as closely as I could have.

In your case I would be having the guys double checking their work first since that was what was done recently. after that it would be the coils, plugs, injectors. Then would come a compression test/valve adjustment. I’m just a bit skiddish when it comes to higher mileage 1st Gen CRVs and their valves going out of spec.

 

Yeah, new timing belt could have an issue.
New is no guarantee of being better than what was already there