Engine Tapping Noise - Pirate4x4.Com : 4x4 and Off-Road Forum

podunkjeep · 07-03-2010, 05:32 PM

98 TJ 4.0

Most likely a lifter... I hope.

What kind of repair bill am I looking at?

Lucy's Driver · 07-04-2010, 05:20 AM

Subscribed - same noise, same truck same year same engine. Seems to be less with higher octane fuel, but maybe that's wishful thinking.

sewerdigger · 07-04-2010, 07:16 AM

My experience was the same, tap at start up, then tapping at idle all the time. On an 04 Rubicon.

Called the dealer and had them run the vin# for warranty info. Got lucky, 8 year 80,000 mi. warranty on the drive train. 100 dollar deduct. (2nd owner).

Got it back 10 days later. Said the lifters had "collapsed". Took the head off in the jeep, and did the work. Don't know if they did a cam change, but replaced the lifters and associated "damaged parts".

Threw in a new exhaust manifold as well. Did not bat an eye at lift and tires. 100 bucks total!!!!

Good luck,

Todd

07-03-2010, 05:32 PM	#1 (permalink)
podunkjeep Registered User Join Date: Dec 2007 Member # 104793 Location: North Carolina Posts: 10	Engine Tapping Noise 98 TJ 4.0 Most likely a lifter... I hope. What kind of repair bill am I looking at? __________________ Even Monkeys Fall From Trees.

07-04-2010, 05:20 AM	#2 (permalink)
Lucy's Driver Registered User Join Date: Jun 2001 Member # 5124 Location: New York, NY Posts: 430	Subscribed - same noise, same truck same year same engine. Seems to be less with higher octane fuel, but maybe that's wishful thinking. __________________ "Your Jeep smells like a sweaty horse." 8/24/01, "Get me out please, I'm upside down, I smell gas." 9/29/01

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07-04-2010, 07:16 AM	#3 (permalink)
sewerdigger Registered User Join Date: May 2008 Member # 113491 Location: Templeton, CA. Posts: 16	My experience was the same, tap at start up, then tapping at idle all the time. On an 04 Rubicon. Called the dealer and had them run the vin# for warranty info. Got lucky, 8 year 80,000 mi. warranty on the drive train. 100 dollar deduct. (2nd owner). Got it back 10 days later. Said the lifters had "collapsed". Took the head off in the jeep, and did the work. Don't know if they did a cam change, but replaced the lifters and associated "damaged parts". Threw in a new exhaust manifold as well. Did not bat an eye at lift and tires. 100 bucks total!!!! Good luck, Todd