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2001 Chevrolet Silverado 2500HD - Page 6 Questions & Answers
NOISE FROM FUEL PUMP
need to have a mechanic take a look at it, does sound like your fuel pump may be going out. if you are in the houston, spring texas area try this guy, he is very inexpensive and can come to you 832 797 1073, shawn is his name
My truck loses power
In most cases it is the fuel filter. I don't know when it was changed before, but it should be changed at least every 8-10 k miles. Make sure you change the air filter too.
Clanking noise coming from Allison Transmission on a 2001 Chrevrolet Silverado 8.1 Liter engine
this does sound like theres a loose line tapping the engine/frame,during warm up the engine idles faster which could make it vibrate faster causing the the clanking or tapping noise,if this has started after trans fluid change,then check the lines running from the trani to radiator sometimes the service person might bang into something causing plastic clips that hold the lines to break,try getting under it and have someone start the truck and listen to see where it's coming from also hold the lines & see if the noise stops,the service guy could have unbolted something & never put the bolt back causing the clank ex.line may have a clip holding it thats bolted to the trani pan ?good luck
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