1993 Ranger Grinding noise please help - Ranger-Forums - The Ultimate Ford Ranger Resource

SOHC - 2.3L & 2.5L Lima Engines Discussions and Topics specific to the Lima 4 cylinder engines

1993 Ranger Grinding noise please help

Reply

 
 
 
  #1  
Old 3 Weeks Ago
Member
Thread Starter
Join Date: Oct 2018
Location: Sugar Hill, GA
Posts: 10
1993 Ranger metallic rattling noise please help

I have a 1993 Ford Ranger 2.3 XLT 5 Speed manual. Ever since I bought it, it has a grinding noise only at mid-high rpm so at low rpm is doesn't make the noise and at high rpm near red line it doesn't make the noise. It's there in every gear including neutral when I rev it weather the clutch is engaged or not. Did a complete clutch job replacing the slave/throw out bearing, clutch, pressure plate, and the little input shaft bearing. Noise is still there. Upon further investigating it almost sounds like the grinding noise is towards the firewall while listening to it under the hood. I checked my exhaust manifold heat shield and it's not lose. I'm at a loss. I uploaded a video too so yall can hear it. Thanks so much!

https://youtu.be/I5Qzf6KR7E0
 

Last edited by MrTPoops; 3 Weeks Ago at 08:34 AM. Reason: Title changed from "grinding" to "metallic rattling"
Reply With Quote
  #2  
Old 3 Weeks Ago
cliffdog2004's Avatar
Member
Join Date: Jul 2018
Location: Irvine
Posts: 108
Sounds more like a rattle than a grind.

Maybe a heat shield somewhere on the exhaust going behind the engine bay?

If it is a rattle instead of grinding, it makes sense that it only happens at mid RPMs as the resonant frequency will make it happen only at mid-range and subside at lower and upper.

I would start tapping on any stuffs coming out the exhaust that's only bolted on or bolted nearby. Heat shields are the likely culprit.

Even way down the line. Not just the manifold.

Hope this helps.
 
Reply With Quote
  #3  
Old 3 Weeks Ago
Member
Thread Starter
Join Date: Oct 2018
Location: Sugar Hill, GA
Posts: 10
Originally Posted by cliffdog2004 View Post
Sounds more like a rattle than a grind.

Maybe a heat shield somewhere on the exhaust going behind the engine bay?

If it is a rattle instead of grinding, it makes sense that it only happens at mid RPMs as the resonant frequency will make it happen only at mid-range and subside at lower and upper.

I would start tapping on stuffs coming out the exhaust that's only bolted on or bolted nearby. Heat shields are the likely culprit.

Hope this helps.
Thanks for the reply. I'll double check but I've already checked.
 
Reply With Quote
  #4  
Old 3 Weeks Ago
cliffdog2004's Avatar
Member
Join Date: Jul 2018
Location: Irvine
Posts: 108
Originally Posted by MrTPoops View Post
Thanks for the reply. I'll double check but I've already checked.
Don't limit your search to just the exhaust. Look for any metal to metal stuffs. Wiggle, flick, tap, curse loudly...

Sometimes...just sometimes...

Catalytic converters make noise when the honeycomb elements inside become corroded from so many years of use and fall apart and rattle, but the rattle you have sounds like it's not a loose rattle, but a tight one.

I'm sure someone else might have a good guesstimation. I could be wrong.

 
Reply With Quote
  #5  
Old 3 Weeks Ago
Member
Thread Starter
Join Date: Oct 2018
Location: Sugar Hill, GA
Posts: 10
Originally Posted by cliffdog2004 View Post
Don't limit your search to just the exhaust. Look for any metal to metal stuffs. Wiggle, flick, tap, curse loudly...

Sometimes...just sometimes...

Catalytic converters make noise when the honeycomb elements inside become corroded from so many years of use and fall apart and rattle, but the rattle you have sounds like it's not a loose rattle, but a tight one.

I'm sure someone else might have a good guesstimation. I could be wrong.
I replaced the cat with a walker bolt on unit. So it's not that. It didn't have a cat when I bought it. Noise never changed
 
Reply With Quote
  #6  
Old 3 Weeks Ago
Member
Join Date: Oct 2018
Location: Klawock, Alaska
Posts: 2
Try a very large hose clamp around the exhaust heat shields.

I know you've already checked it. I had a similar noise that would resonate at certain RPMS. Just by process of elimination I tried one of these around the heat shield, just snug enough to hold a bit of tension on it. Got lucky and that was it, the noise went away. My heat shields were tight and only made that noise in conjunction with certain RPMS. Worth a try.
 
Reply With Quote
  #7  
Old 3 Weeks Ago
Member
Thread Starter
Join Date: Oct 2018
Location: Sugar Hill, GA
Posts: 10
Thanks but I've put my hand on that heat shield while pulling the throttle and making that noise and the noise didn't change. Where exactly did u put that clamp?
 
Reply With Quote
  #8  
Old 3 Weeks Ago
Member
Join Date: Oct 2018
Location: Klawock, Alaska
Posts: 2
I wrapped it around the heat shield and exhaust pipe and just tightened it until there was a little tension on it. I guess I just got lucky.
 
Reply With Quote
  #9  
Old 3 Weeks Ago
cliffdog2004's Avatar
Member
Join Date: Jul 2018
Location: Irvine
Posts: 108
I'm out of ideas, MrT, but let's narrow it down.

How about taking off the heat shield(s) to eliminate that making the noise? If it disappears, then we have the source. If it doesn't, we move on to another.
 
Reply With Quote
  #10  
Old 3 Weeks Ago
Member
Thread Starter
Join Date: Oct 2018
Location: Sugar Hill, GA
Posts: 10
Originally Posted by cliffdog2004 View Post
I'm out of ideas, MrT, but let's narrow it down.

How about taking off the heat shield(s) to eliminate that making the noise? If it disappears, then we have the source. If it doesn't, we move on to another.
Ok man when I get a chance this week ill see if I can remove it. Isnt it tac welded on
 
Reply With Quote
  #11  
Old 2 Weeks Ago
Member
Thread Starter
Join Date: Oct 2018
Location: Sugar Hill, GA
Posts: 10
OK i tried everything you guys suggested, but the strap on the manifold and everything. Still makes the rattling noise. It is literally coming from where the egr comes into the intake. back behind there. ive revved the engine from under the hood to get it to constantly make that noise and looked and felt around and nothing seems out of the ordinary. is there a possibility that the noise is coming from under my valve cover or my intake manifold? Any pointers or ideas will help because i have no clue whats causing this annoying loud noise. Thanks a lot guys
 
Reply With Quote
  #12  
Old 2 Weeks Ago
Member
Thread Starter
Join Date: Oct 2018
Location: Sugar Hill, GA
Posts: 10
Also just finished doing timing belt and timing belt tensioner, water pump, thermostat, oil change, coolant flush etc. Nothing changed the noises
 
Reply With Quote
  #13  
Old 2 Weeks Ago
cliffdog2004's Avatar
Member
Join Date: Jul 2018
Location: Irvine
Posts: 108
It does sound like something small.

You said a clutch job was done.

I'm thinking maybe something inside the bellhousing not tightened down all the way? Being "back behind there" and all.

Are there any brackets back there that may have been disconnected for the clutch job?

When you ask if the noise may be coming from your intake or valve cover...has there been any work to that before and then the noise started?

If you'd like to unbolt all that to check, it only costs you time.

It doesn't sound like valve lash. That's more of a ticking and throughout the RPM range...not just midrange.
 
Reply With Quote
  #14  
Old 2 Weeks Ago
Grumpa's Avatar
Member
Join Date: Oct 2017
Location: Indiana
Posts: 126
Sounds like a tight dry ball bearing. Check the engine peripherals. Sounds can do weird things. Have you tried to use a stethoscope to help pinpoint the spot?
 
Reply With Quote
  #15  
Old 2 Weeks Ago
Member
Thread Starter
Join Date: Oct 2018
Location: Sugar Hill, GA
Posts: 10
The truck didnt need a clutch, the whole reason i did the clutch job in the first place was because i thought it was a bearing (pilot bearing or throw out bearing or maybe a loose pressure plate etc) although the bearings were in poor shape, replacing them didnt change the noise. I didnt see anything unusual while doing the clutch (input shaft was nice and tight and very little play etc) my worst fear is an internal transmission bearing but wouldent that not cause the rattling while im in neutral? Remember it does it in gear and in neutral when i rev it. I havent got a stethoscope to pinpoint it yet but its most definently near the rear of the engine. Maybe ill post another video later of where its coming from. Thanks so much for your help guys.
 
Reply With Quote
  #16  
Old 2 Weeks Ago
Member
Thread Starter
Join Date: Oct 2018
Location: Sugar Hill, GA
Posts: 10
Good news. On sunday night i was very confused on what the noise could possibly be. I've searched around and some people suggested that it could be spark knock of some sort. So on Monday my gas tank was nearly empty so i added 5 gallons of shell v power 93 octane. Tuesday morning it seemed like the noise didnt happen for as long as it used to throughout the rpm range. And that evening when I drove home from work, the noise conpletely went away and i didnt hear it ONCE my entire drive home. Ever since i bought this truck 8 months ago it ALWAYS made this noise and now it is entirely gone. Im super stoked but i found this to be extremely bizzare. Im almost convinced that it was a coincidence and it somehow went away by itself but thats extremely unlikely. So i guess if anybody else has trouble with this kind of noise, try some high quality high octane gas and it might go away. Now im curious if i put regular 87 octane gas in if the noise will come back. Thanks for all of your help guys. God bless
 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Workmansranger
Drivetrain Tech
1
07-26-2015 12:05 PM
etid_kadera12
SOHC - 2.3L & 2.5L Lima Engines
1
01-08-2014 06:05 PM
saltdog
General Ford Ranger Discussion
11
02-18-2006 07:01 AM
CAW
Drivetrain Tech
7
12-11-2005 11:56 AM


Thread Tools
Search this Thread
Quick Reply: 1993 Ranger Grinding noise please help


Contact Us Sitemap Advertising Cookie Policy Privacy Statement Terms of Service

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 Amazon.com and affiliated sites.