2005 Chevy Trailblazer Tapping noise Please help

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2005 Chevy Trailblazer Tapping noise Please help

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Chevrolet >> Chevy Trucks, Vans & SUV's >> Trailblazer >> 2005 Chevy Trailblazer Tapping noise Please help

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2005 Chevy Trailblazer Tapping noise Please help - 8/27/2008 5:12:59 PM

wols4u

Posts: 1
Joined: 8/27/2008
Status: offline

I have a 2005 trailblazer with the vortech straight 6. As I am driving I hear a tapping noise as the transmission is switching gears. It also taps lightely in Idle. Inoticed this after I took it to Easy Lube for a synthetic oil change. I then tried to change the oil again and add a oil sedative. Now not as loud but deffinetely still there. One mechanic I took it too said somethings was wrong with the lifters possibly. Chevy told me it was the gears in my fan that needed to be changed. I held my fan while turning on the car and running the motor but still makes the t.t.t.t.t.t.t.t..t.t. If I floor it from a dead stop I dont hardly hear it at all. Its just a loud t.t.t.t.t..t.t.t.t.t..t then after 3 rd gear its pretty much gone. I also noticed that it has been burning oil.Has anyone heard of this before ? Any Suggestions? Commets are much appreciated. Thanks Ryan

Post #: 1

RE: 2005 Chevy Trailblazer Tapping noise Please help - 8/28/2008 3:11:59 PM

rbarrios

Posts: 246
Joined: 2/1/2007
Status: offline

the fuel injectors tick.... but usually you hear that if you open the hood..... not from inside.
also- some of the fan clutches will tick at times. many times when its cold outside. the fan clutches fail often on the Trailblazers.
try www.trailvoy.com for more info.

(in reply to wols4u)

Post #: 2