Page 1 of 1
4.0 Ticking
Posted: Fri May 23, 2008 10:59 pm
by greenmachine89
Just bought a '91 Explorer that drove just fine but the other day it began to tick. I have a B2 with a 2.9 and it ticks only when I start it. This 4.0 ticks all the time! Is it low oil pressure, or is there sludge built up? Any ideas on what to add to the oil, do I need to clean out the oil pump, or replace it? Help!
Re: 4.0 Ticking
Posted: Fri May 23, 2008 11:43 pm
by Godzilla9992
You could start by testing your oil pressure, you can usually get a cheap guage from any parts place for $15-$20.
Re: 4.0 Ticking
Posted: Sat May 24, 2008 11:14 pm
by greenmachine89
Yea but my stock gauge says the pressure is good. Unless of course those don't work too well.
Re: 4.0 Ticking
Posted: Mon May 26, 2008 1:03 pm
by Joel H
Likely worn pushrods and rockers.
Re: 4.0 Ticking
Posted: Tue May 27, 2008 8:16 am
by greenmachine89
So that meens new cam and everything! Might as well go with something for more power. For now how heavy of an oil should I use? 5w 20?I have 10w 30 right now.
Re: 4.0 Ticking
Posted: Tue May 27, 2008 11:24 am
by Joel H
greenmachine89 wrote:So that meens new cam and everything! Might as well go with something for more power. For now how heavy of an oil should I use? 5w 20?I have 10w 30 right now.
No cam change. The softer pushrods and rocker tips will wear out faster.
I sent a guy $!00 for some parts and included were a set of new rockers and pushrods for my ticking 4.0L. Unfortunatly that was nearly a year ago. Haven't heard from the guy in months.
Re: 4.0 Ticking
Posted: Tue May 27, 2008 1:47 pm
by greenmachine89
That sucks bad! I just talked to the local parts store and push rods are 6.99 each and rocker arms are 21.99 each