Hard to start when it's cold, runs like it's missing...tune up??? One spark plug is obstructed by the steering column, how do you gain access to that one spark plug? Thanks for your time.
My husband said to take tire off and go through the firewall to get to that one plug. That's what he done.
Remove the passenger side tire and the firewall and you will gain easy access to the spark plug
My 1998 gmc jimmy will turn over but wont crank
I use a socket that has an end on it that a wrench fits over it. I put the socket on then use the wrench to turn the socket. It takes a bit of effort because you can only turn the wrench a little before you have to reposition it back on the socket again. I've tried the going through the fender well and removing the tire but this is what works best for me.
Remove the left wheel to access the left side plugs. For cylinder 3 (behind the steering column) use a long extension and a spark plug socket with a built in universal joint (3/8 drive, 5/8 socket). It's a tight fit and you may need to remove the rubber insert in the socket to get it on the plug. Because of all the stuff installed at the top of the engine, it's a lot easier to remove both wheels to get at all 6 plugs. This is a job you don't want to do too often, so use iridium plugs (good for up to 100K miles).
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