I've owned by 1995 6.5L Tahoe for over 13 years and 175K + miles, and have never had to touch a glow plug in that time period. However, over the past several weeks, I've noticed she was getting harder and harder to start when cold, even when plugged in. The final straw was last weekend when returning from a trip with friends, and I went to start the Tahoe after sitting for 36 hours in 20 degree weather without being plugged in, and I was wondering if she was going to start or not.

I had checked all the plugs I could get easy access to, and all appeared to be good, but I decided it was time for some fresh plugs anyway. I ordered up a set of Kennedy's Quick Heat plugs, and set aside this past Saturday to do the job.

I tackled the difficult passenger side first. With information I had gleaned over the years here at the Diesel Page, along with a few Youtube videos, I tore into the job by removing the steel inner fender and dropping the exhaust pipe from the turbo. I was pleasantly surprised that the job wasn't as bad as I expected. I spent around 2.5 hours replacing the plugs on the passenger side, and about 10 minutes on the driver side.

I checked all the plugs I removed, and, surprise surprise, the 3 plugs I couldn't access easily during my initial checks were all dead! I was surprised she was starting at all with 3 cold cylinders.

This morning she fired right up, better than ever, even without being plugged in! I am quite pleased thus far with the Kennedy Quick Heats. Thank you, Diesel Page.

Casey