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Jeep Wrangler JK
JK General Discussion
Knocking after oil cooler replacement…help would be greatly appreciated
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<blockquote data-quote="GROUNDHOG" data-source="post: 458020" data-attributes="member: 24996"><p>THAT SOUNDS ALOT LIKE A</p><p></p><p>THAT NOISE AND BEHAVIOR SOUND VERY MUCH LIKE A LIFTER NOT SEALING UP CONSTANTLY, A BIT OF DEBRIS STIRRED UP FROM THE CHANGE GOT INTO THE LIFTER SEAL AND ALLOWS IT TO LOOSE OIL PRESSURE AFTER ENGINE COOLS, THEN IT WILL KNOCK WHILE COLD, IT PRESSURES UP AFTER IT WARMS UP, AND WILL</p><p>MAKE A K OCKING SOUND TILL IT DOES, IF THE LEAK IS BAD ENOUGH IT MAY NEVER SEAL UP 100%, OIL PRESSURE VARIES WITH RPMS, MY LIBERTY HAD THIS ISSUE IT'S ENTIRE LIFE, NEVER HURT ANYTHING, FINALLY SOLVED IT BY REMOVING MOST BUT NOT ALL OIL FROM ENGINE AND REVING IT A FEW TIMES, THE UN PRESSURED LIFTER WHACKED UP AND DOWN SERIOUSLY HARD AND KNOCKED THE DEBRIS OUT OF THE SEAL, WHEN REPLACED OIL SHE WORKED CORRECTLY AND GREAT FROM THEN ON.</p></blockquote><p></p>
[QUOTE="GROUNDHOG, post: 458020, member: 24996"] THAT SOUNDS ALOT LIKE A THAT NOISE AND BEHAVIOR SOUND VERY MUCH LIKE A LIFTER NOT SEALING UP CONSTANTLY, A BIT OF DEBRIS STIRRED UP FROM THE CHANGE GOT INTO THE LIFTER SEAL AND ALLOWS IT TO LOOSE OIL PRESSURE AFTER ENGINE COOLS, THEN IT WILL KNOCK WHILE COLD, IT PRESSURES UP AFTER IT WARMS UP, AND WILL MAKE A K OCKING SOUND TILL IT DOES, IF THE LEAK IS BAD ENOUGH IT MAY NEVER SEAL UP 100%, OIL PRESSURE VARIES WITH RPMS, MY LIBERTY HAD THIS ISSUE IT'S ENTIRE LIFE, NEVER HURT ANYTHING, FINALLY SOLVED IT BY REMOVING MOST BUT NOT ALL OIL FROM ENGINE AND REVING IT A FEW TIMES, THE UN PRESSURED LIFTER WHACKED UP AND DOWN SERIOUSLY HARD AND KNOCKED THE DEBRIS OUT OF THE SEAL, WHEN REPLACED OIL SHE WORKED CORRECTLY AND GREAT FROM THEN ON. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Knocking after oil cooler replacement…help would be greatly appreciated
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