Post swap rattle (Engine related)
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Post swap rattle (Engine related)
I've been enjoying my 3.4 for the last few months and made a number of runs up to the hills for the ski season. Haven't had any issues except for the exhaust falling apart because cheap bolts from the exhaust shop.
Anyway, about a week ago I started hearing a little ticking/knocking sound from the under carriage when I was at stop lights. A couple days later the noise got louder but when I put the truck in neutral it stopped. I thought it was the transmission but I'm not so sure now. This week the knocking noise has changed to more of a rattle and it only occurs between 1000 and 1500 RPM. I crawled under the truck while in drive with the e-brake on, and used the old screw drive to your ear trick. As best as I can tell it is either the lower part of the engine, the torque converter, or (cross my fingers) the "extra" leg of the oil pick up that I couldn't bolt the block. It sounds like a loose heat shield but I couldn't find any that were loose. The performance isn't affected at all but damn if it isn't driving me crazy! Any ideas???
Anyway, about a week ago I started hearing a little ticking/knocking sound from the under carriage when I was at stop lights. A couple days later the noise got louder but when I put the truck in neutral it stopped. I thought it was the transmission but I'm not so sure now. This week the knocking noise has changed to more of a rattle and it only occurs between 1000 and 1500 RPM. I crawled under the truck while in drive with the e-brake on, and used the old screw drive to your ear trick. As best as I can tell it is either the lower part of the engine, the torque converter, or (cross my fingers) the "extra" leg of the oil pick up that I couldn't bolt the block. It sounds like a loose heat shield but I couldn't find any that were loose. The performance isn't affected at all but damn if it isn't driving me crazy! Any ideas???
Last edited by syber_kowboy; 04-16-2009 at 04:28 PM.
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