Thread: Engine Tick

  1. Engine Tick

    Hello Everyone, first post.
    1991 Jeep Cherokee 4.0 HO 4x4 Briarwood 200000 miles

    Ticking coming from valve cover, around #1 sparkplug.
    Tried to isolate by pulling spark plugs, one at a time, while running. I heard this can tell you if this is hydraulic lifter or oil pressure issue. No difference in ticking noted. Getting strange readings from oil guage (up and down). Absolutely no tick when first started cold, ticking starts after 2 minutes and gets worse until sounding loud.
    I did change oil (no difference noted)
    My guess is oil pump. Could someone help diagnose please? Before I spend $350 on oil pump replacement, or spend a dirty day under my Jeep

    Thanks!

  2. #2
    Join Date
    May 2004
    Location
    Nags Head, NC
    Posts
    3,909

    Re: Engine Tick

    First off, welcome to the "Z"!!!! Bunch of knowledgeable, friendly folks here.

    Unfortunately, I'm not one of the more knowledgeable. If there's no noise when you first start it, I'm thinking your oil pump's allright. You've got 200K on the engine.....have you ever used one of the "oil flush" products on it?? Sounds like you might have some build-up in an "oil channel" in the block somewhere?? possibly??? Ticking after warming up maybe a valve???? Have you tried listening with a wooden dowel (or something similar) to isolate the location?? Strange oil gauge readings could be a bad sending unit. Just a few thoughts.......wish I could help more. Good luck and keep us posted.
    Just Enjoy Every Possibility!

  3. #3

    Re: Engine Tick

    Consider replacing a qt. of oil with a qt. of ATF and let us know if it makes a difference. They're known for noisy lifters.

  4. #4

    Re: Engine Tick

    Thanks for the replies.

    ATF is Automatic Transmission Fluid? What would this accomplish?

  5. #5

    Re: Engine Tick

    Automatic transmission fluid has been used for decades to quiet noisy lifters. My mechanic's wife drives a Grand with a 4.0L and he found the only way to keep the lifters quiet was a qt. of ATF at every oil change. He had tried spinning the noisy lifter in place but that only quieted it for a short time. The ATF worked better, and easier.

Similar Threads

  1. engine
    By studabaker in forum Items for Sale, Trade, or Give Away
    Replies: 3
    Last Post: 02-15-2006, 02:13 AM
  2. Cold Engine - Good/Warm Engine - Bad?
    By CJatGuy in forum Cherokee, Commander, Wagoneer and Liberty
    Replies: 4
    Last Post: 02-19-2005, 01:36 AM
  3. '73 454 engine
    By 88Wrangles in forum Items for Sale, Trade, or Give Away
    Replies: 4
    Last Post: 09-17-2004, 07:03 PM
  4. Jeep wrangler TJ- Skid row engine skid for a 4.0L engine
    By TJ-7 in forum Items for Sale, Trade, or Give Away
    Replies: 3
    Last Post: 08-25-2003, 09:42 PM
  5. tick, tick, tick.....grrr!
    By dingus in forum Wrangler and CJ
    Replies: 4
    Last Post: 07-20-2003, 08:00 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Log in

Log in