Engine Noise

[dfocht]

Hello gents!

I appear to have a lot of engine noise in my V8 '98 Explorer when I push on the accelerator. At idle or cruising speed it's a chugging & ticking sound but the moment you step on the gas it sounds terrible. Any thoughts as to what could be going on? I just replaced the AC unit so I would hate to find out it's something crazy expensive.


Here's the video link.

https://youtu.be/M-8LFmOPXcU

 

[Jeff213]

Check the egr valve pipe that comes from the exhaust manifold. May also be a cracked manifold or bad gasket. hook a shop vac in blow (empty, dont blow in debris) to the tail pipe to find the leak.

My egr pipe was cracked in 2, easy fix. I modified a 7/8 crow foot socket from autozone with a bench grinder to be large enough to take off the egr pipe.

 

[dfocht]

Great! Will check it out.

 

[shadowless127]

Jeff pretty much nailed it, either EGR or Exhaust Manifold. I'm on my 3rd 2nd gen and all 3 have had leaky/bad/broken exhaust manifolds. Both are cheap if you do the wrenching yourself. Me not being very mechanically inclined, I have opted for the "put a big ass stereo in" option to deter the noise lol.

 

[dfocht]

Follow Up

Jeff213 & shadowless127 - You guys are genius! That's exactly what it was. Between that and leaking coolant seal, the shop I went fixed both problems for $300. That's a bargain as far as I'm concerned. The truck hasn't run this smooth and quiet in a looooong time. Thanks for the advice!