February 10, 200917 yr have a 94 impreza and notice a slight gear noise coming from the engine at idle but goes away when reved. should i be worried about this...
February 10, 200917 yr How many miles? Spray the acc drive belt with some water and see if the noise goes away. if it does it can be the alt/ps/idler on that belt. When was the last time the timing belt was done and what was changed with it? nipper
February 12, 200917 yr Author 150k on the car. not sure on the timing belt. but going to change it this weekend. sounds a bit different on the left side head than the right in terms of clicking. Going to adjust the valves this weekend also.
February 12, 200917 yr If its unknown, then your going to do the entire timing beltthing: water pump cam seals main seal idler tensioner re-seal the oil pump. Its quite possible what your hearing may be a tensioner/idler giving up the ghost. Dont drive the car till you get to inspect those parts. If they let go then can do lots of engine damage. nipper
February 12, 200917 yr Track the noise down a bit, front of engine, back, trans, sides? Should be able to narrow it down for sure. Any difference in gear or out of gear? Ebay has timing belt kits for only $80. Includes the belt and all new pulleys and tensioner. By this time I would guess most, if not all, of your pulleys need replaced anyway.
February 12, 200917 yr Author Now i am hearing a very faint higher pitched screal. not driving the car till i figure it out. I can only hear it when i'm driving/ sitting in the the car. when i listen in the engine bay i can't hear it. Can hear in gear and out of gear, speeds up as rpms climb. Edited February 12, 200917 yr by hebrewhammer
February 12, 200917 yr can also be a failing water pump. Take off those timing belt covers and inspect it. nipper
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