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Spark plugs on 2001 Tahoe 5.3L

Tiny
LKILROY
  • MEMBER
  • 2001 CHEVROLET TAHOE
I want to change the plugs on my Tahoe. I've done this on other cars but on the Tahoe they appear to be encased in a metal cylander. Does this just protect the plugs? Does it pull off? I was afraid to pull too hard. Also, will it hurt the cooling system if I use something other than Dextran which cost about 100.00? Thanks
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Thursday, June 7th, 2007 AT 2:42 PM

1 Reply

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
The metal cylinder is a heat sheild and can remain right where it's at. Use and extension to get down in.

Dex-cool is a 5-year 150,000 mile coolant, you can use extended life coolant which has a long life as well. You can go to standard green coolant, but then you need to change it every 2 years/24,000 miles. I would stay with Dex-cool on that one.

Dextron is transmission fluid.
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Thursday, June 7th, 2007 AT 6:45 PM

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