Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #1  
Old 10-25-2018, 03:43 PM
make_a_splash make_a_splash is offline
Learning to use the forums
 
Join Date: Jun 2017
Posts: 2
Default Strange Rattle Under Load, 1994 4.0L OHV

Ever since I got my truck last year, it's had a weird rapid popping/rattling noise that occurs frequently somewhere in the lower front, but under specific conditions. If I rev up and down in park I don't hear it, but if I'm on the road and accelerate modestly it's noticeable, and goes away some if I accelerate harder or disappears completely if I let off. I'm assuming it's not a bearing or timing chain, since it only does it under load and doesn't sound rhythmic.

I'm thinking maybe a bad catalytic converter? (My mpg seems a bit low and the idle has always been uneven)

Last edited by make_a_splash; 10-25-2018 at 03:47 PM.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
1994 taurus 3.0l to 1994 ranger swap Papa Smurf 3.0 Vulcan Tech 0 07-12-2014 02:08 PM
Load weight reba4ever Exterior Tech 4 06-26-2014 08:34 PM
4.0 OHV Miss Under Load betard_foosier 4.0 SOHC / 4.0 OHV Tech 0 09-30-2013 01:39 PM
2005 4x4 rattle under load... cky022 Drivetrain Tech 0 09-13-2013 10:40 PM
under-load Misfire?? GABeck82 4.0 SOHC / 4.0 OHV Tech 0 06-11-2011 11:05 AM