New plugs fixed my transmission and evap leak

6716

Original poster
Member
Jul 24, 2012
821
Or so it seems.

On the highway, coming up on a hill, when I would give it some gas, the truck would have trouble like it didn't want to keep the torque converter locked. I mean it felt like hesitation AND the transmission has less than 8k miles on it, but it also seemed like the torque converter lock issue I faced before and is well known.

But I guess it must have been the misfire I was getting on cylinder 1 due to a damaged plug, even though I wasn't getting a code for it. Because now that the plugs are replaced, it doesn't have that stumble anymore.

Also, I had a code for evap large leak, and it has gone away, I wonder if that was fuel not working properly due to the misfire and bad plug.
 

Mooseman

Moderator
Dec 4, 2011
25,262
Ottawa, ON
If it had a misfire, maybe the cat got clogged. Try removing the O2 sensor and see if it improves or do a backpressure test.
 

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