Sable Discuss the Mercury Sable here...

please help asap

Old 09-19-2012, 02:36 PM
Junior Member
Thread Starter
Join Date: Sep 2012
Posts: 1
Default please help asap

i have a 2000 merc. sable with a 3.0 dohc and it started knocking yesterday when i started it and it sounded like it was coming from under the valve cover so i checked the oil and it was 3 quarts low so i put sum 10w40 in it and started it and it was still knocking so i took off the valve cover and turned it on and number 5 cylinder would knock at around 1000 to 1500 rpm i dnt know how these engines work with that 32 valve stuff but if some one could tell me more less what it could be or tell me how to find out what it is please do
Old 09-24-2012, 01:33 AM
Junior Member
Join Date: Jan 2011
Posts: 4

First, lesson learned, check your fluid levels once a week. Second, go to either a trusted garage or I prefer the Ford dealer and have it looked at. Or third, just drive it and wait until something blows up.
Old 10-12-2012, 09:27 AM
Junior Member
Join Date: Oct 2012
Posts: 2

In these models the lifters are hydraulic and if you,re oil level was that low 9 times out of 10 that is exactly what it is. The cause is from lack of oil pressure and the lifter was being pressed down with no pressure to pump it back up. It can be a easy fix if you have a mild set of skills. you start by buying a set of lifters for each cylinder you are experiencing the knocking. You should replace both intake and exhaust lifters because there is no way to be sure which one is the cause. Be sure to prime the new lifters in new oil for a few hours first before the installation after you are finished throw a bottle of lucas to thicken up the mix and bam you,re problem is solved. Be sure to look online or in a manual to figure out the best way to remove the rocker arms because I cant remember exactly if they can be removed with the cam in place but I am almost positive you can...
Related Topics
Thread Starter
Last Post
03-18-2014 03:14 PM
02-25-2014 10:04 AM
Jonathan Farrow
04-08-2013 01:28 PM
Grand Marquis
08-20-2011 07:53 PM
Audio/Visual Electronics
09-17-2010 03:18 PM

Thread Tools
Search this Thread
Quick Reply: please help asap

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.