new onset engine rattle - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 02-06-2013, 04:15 PM   #1
michaelD's Avatar
Join Date: Jan 2013
Location: black mountain NC
Posts: 4
new onset engine rattle

I have a 2003 TJ and just did some preventative work replacing water pump, hoses, inlet tube, rad cap, thermostat, antifreeze. Came out nice, so while I was there, I decided to replace the pair of PVC valves (one metered, one open) because the valve cover seems to be getting more oily, quicker, than it used to. That finished, my heater air control selector switch wouldn't work...found the vacuum line that I had knocked off, replaced, works fine.
What I have now is a rattle, engine speed linked, at higher rpms, (very much like the sound of engine knock at lugging speeds) that seems linked to higher rpm NOT load. I first thought: another vacuum line I knocked off...but I can't find anything off, and the motor runs excellently. another note: for the first few minutes on a cold engine, no knock at all. -as it warms up, then that deathly rattle starts....not real noisy like lugging, but there. Thoughts??
michaelD is offline   Quote
Old 02-06-2013, 04:27 PM   #2
Gold Miner's Avatar
Join Date: Jan 2013
Location: way up thar
Posts: 550
worse case scenario....
bent push rod?

'01 Sahara, Original Owner
BDS, OME, Metalcloak,
JKS Disco, Rough Trail, Kargo Master, Engo Quadlux.... bla bla bla, never done
Ghost Creek Mine, Owner ... Mitchell/Yooper Placer Mine, Owner
Only thing we have to fear is, fear itself....................................... and bears
Gold Miner is offline   Quote
Old 02-06-2013, 04:35 PM   #3
michaelD's Avatar
Join Date: Jan 2013
Location: black mountain NC
Posts: 4
hope not! I did drive about 50 miles total with the vacuum leak going on, wondering why all the air was coming out the defroster vents
michaelD is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 04:56 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC