1994 Explorer with engine knocking?
ZnLsD
02-13-2004, 08:58 AM
I am looking at buying a '94 Explorer but it's engine knocks. Can anyone tell me what casues this and how much it would cost to repair? Any help would be greatly appreciated. Thanks.
Yert
04-28-2004, 07:12 PM
oil change
NoXferCase
04-29-2004, 08:57 AM
Very possibly you are hearing lifter "tap/tick". One of the reasons they do that is from a low oil level. With the hood open, it should sound like it's coming from the top of the engine.
HOWEVER, there is a much more ominous sound that comes from the bottom of the engine. A true "knocking" sound could be a bearing that's seriously considering hari-kari.
If you're sure it's coming from the top of the engine, an oil change (possibly a lifter adjustment) should fix it. Otherwise, BEWARE! :thumbsdown:
HOWEVER, there is a much more ominous sound that comes from the bottom of the engine. A true "knocking" sound could be a bearing that's seriously considering hari-kari.
If you're sure it's coming from the top of the engine, an oil change (possibly a lifter adjustment) should fix it. Otherwise, BEWARE! :thumbsdown:
Dougs97
04-30-2004, 02:59 AM
Once possiblity. Just a guess. Listen closely to the Idler pulley for the serpintine belt. I have heard that the bearing goes out on these and it sounds like a knocking sound. How many miles on this one?
Automotive Network, Inc., Copyright ©2026