2001 LHS hesitates or hick-ups HELP

[mailmule]

Hello, The reason I am doing this is because my lhs hesitates or hick-ups whenever it wants but sometimes at an idol and sometimes when climbing a hill while in a high gear. I figured fuel filter but that next to impossible to get to, I figured plugs are a good start with 130000 on it. Well First thing I did was run a scan to see if anything came up and no codes given. I then decided to change the spark plugs as a routine maintenance. I was able to remove 2 of the coils but have striped the screws on the others. I bought a screw removal tool and all that does is spin inside the head making it worse. So I am now going to have to really f it up to get the new plugs in but this is my problem. So now that I cant remove the coils I decided to just pinpoint the issue. With the hood open and starting the car, I hear what sounds like an arching noise but there are no wires in this car so what would be arching? I have narrowed it down to the arching noise coincides with the hick up/hesitation but check engine light isnt on and no codes show on a scan. Any suggestions??? Thanks in advance Scott

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[bannock]

I had a '96 LHS with the same motor. A typical problem was the intake manifold gasket. It would fall apart and cause the issue you describe. Its not that hard to replace. Sounds like you may have a coil that is leaking current out somewhere. Try looking at it somewhere when its completely dark. You might find it grounding out around the one of the coils.
Good Luck.

[kyo001]

hmm, sorry to hijack ur thread, but I stripped the screws taking out 2/6 of my spark plug coils as well. If you find a place that would be national, that will tap your screws, please let me know. I replaced 4/6 of my spark plugs 5 months ago with Bosch Platinum+2, but since I stripped the crescent screws on 2 of em, and I havent been able to find a place that will actually tap the screws for me, while inside the car, its been bothering the heck out of me ever since. Still have the 2 new sparkplugs in my glovebox just waiting.

[mailmule]

Ky,

I used a dremel tool to notch the screws and was able to get them out. I had to go to the hardware store and find replacement screws and spacers that would replace the ones I stripped. It wasnt easy but I was able to get them out.