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jimlam56
06-21-2017, 06:56 AM
My MM is semi retired, haven't driven it in a few weeks. Pulled it out of the garage last weekend, running very rough. Opened the hood and happened to touch the driver's side valve cover and was shocked with a pretty good voltage!
Coil packs have been replaced in the last few years, could one be grounded (or not grounded)?
Comments are appreciated.
fastblackmerc
06-21-2017, 07:13 AM
My MM is semi retired, haven't driven it in a few weeks. Pulled it out of the garage last weekend, running very rough. Opened the hood and happened to touch the driver's side valve cover and was shocked with a pretty good voltage!
Coil packs have been replaced in the last few years, could one be grounded (or not grounded)?
Comments are appreciated.

Check the COP connections and harness under the COP covers.
Zack
06-21-2017, 09:02 AM
Pray a plug did not blow out of the head.
SWOOSH
06-21-2017, 10:33 AM
That happened to me, ended up getting another motor :-(
Marauderjack
06-21-2017, 11:46 AM
Pray a plug did not blow out of the head.

He's got an '04 car so probably not but I guess anything is possible??:confused:
jimlam56
06-21-2017, 03:29 PM
Thanks guys, I'll pull the covers this weekend and report back.
jimlam56
07-25-2017, 06:22 PM
Finally had a chance to look as the MM is not a daily driver. Spark plug blow out as Zack predicted...likely that my mechanic (ex) didn't torque when replacing the coil packs.
What's the next step? Insert?
Thanks.
Jim
NorthShoreChiMM
07-25-2017, 07:58 PM
Finally had a chance to look as the MM is not a daily driver. Spark plug blow out as Zack predicted...likely that my mechanic (ex) didn't torque when replacing the coil packs.
What's the next step? Insert?
Thanks.
Jim

Arnt they only tightened to like 12 ft lbs. Wouldn't You have to leave them real loose for that to occur?
FordNut
07-26-2017, 03:37 AM
Finally had a chance to look as the MM is not a daily driver. Spark plug blow out as Zack predicted...likely that my mechanic (ex) didn't torque when replacing the coil packs.
What's the next step? Insert?
Thanks.
Jim

Insert is really the only choice.
fastblackmerc
07-26-2017, 07:04 AM
I'd check the threads first. If bad then insert needed. I believe Time-Serts are recommended.
Cobra25
07-27-2017, 05:24 AM
Sorry to hear about that problem your having Jim.
jimlam56
08-05-2017, 06:06 AM
OK time to fix it. Can anyone tell me which time-sert is needed? (Thread, pitch etc.)
Thanks,
Jim
Spectragod
08-05-2017, 10:17 AM
Time sert or lock-n-stitch are the recommended inserts, I loaned my tool out with inserts or I'd have the part number.

Lji_372 has it, maybe Jerry will chime in with the part #.
O's Fan Rich
08-08-2017, 05:00 PM
Bummer, Jim.....