VALVE NOISE
Member
Joined: Jul 2005
Posts: 53
From: Puerto Rico
Originally Posted by DEEBEE
I AM A NEW MEMBER TO THIS SITE. I DID A SEARCH AND DID NOT FIND ANYTHING ON MY PROBLEM. I HAVE A 1994 TROOPER WITH THE 3.2 LITER - SINGLE OVERHEAD CAM ENGINE WITH 86000 MILES. THE OTHER DAY THE VALVES STARTED CLICKING REALLY LOUD ALL OF A SUDDEN. I HAD JUST FILLED IT UP WITH GAS WITH 89 OCT. MID GRADE GAS. IT PERSISTED FOR A FEW DAYS. I DECIDED THAT I MAY HAVE GOT SOME BAD GAS AND FILLED IT UP WITH HIGH TEST GAS. IT STILL MADE THE NOISE FOR A DAY OR TWO AND THEN STOPPED AS SUDDENLY AS IT BEGAN. THE OIL PRESSURE LIGHT NEVER CAME ON OR ANYTHING. SHOULD I BE WORRIED ABOUT THIS? IS THIS A COMMON OCCURANCE FOR THIS ENGINE? COULD IT HAVE BEEN DUE TI THE LOW OCTANE GAS? ANY REPLY OR COMMENTS ARE WELCOMED. THANKS
Your problem is the gasoline grade that you are using. if you wish to use a gasoline of lesser grade, then you have to take your trooper to a mechanic, so that they may adjust the ignition timing.[img]smileys/smiley4.gif[/img]
Junior Member
Joined: Oct 2005
Posts: 2
From: United States
My valves started getting a bit rattly, and I was told by an Isuzu Mechanic (works at a dealer) that noisy valves is pretty common. He also said that what he recommends is using Mobile One zero weight thirty ( 0 W- 30 W) synthetic oil. After about six or seven hundred miles, the noise goes away. I tried it, and the noise was drastically reduced for several months. It seems to be building up again, though. I'm going to change the oil again, tomorrow, and hope that it gets quiet again.
Junior Member
Joined: Oct 2005
Posts: 3
From: United States
wow thanks for the tip on the Lucas additive. made a huge difference. I actually enjoy driving again now. that noise was really bothering me. it runs better, quiter and cooler. it really works as adveratised.
Junior Member
Joined: Jan 2006
Posts: 12
From: United States
This valve noise is comon. My '94 Trooper S dd it, and my current '96 Trooper S does it. As others have said, keep your oil level properly topped off to minimize this problem.
Hey trowbridge73: When you had the machine shop fashion you some mechanical valve lash adjusters, how much did that cost, if you don't mind me asking? Did you install them yourself, or did the machine shop install them? Thanks,
David
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