2000 Ford F-150 bad sounding engine?

Tiny
POOLTABLEGUY1219
  • MEMBER
  • 2000 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 175,000 MILES
I was driving at about 35, driving smooth! Heard a little pop, thought I ran over something but didn't see anything. I then heard a knocking sound, so I pulled over, thinking no oil, afraid of throwing the rod threw the block. Plenty of oil, in need of an oil change but still had oil. When I open the hood I heard the knocking(more like tinging) but more important it sounded like air blowing. You know when you shoot a paintball gun at high pressure with no paintballs. That sound is in sync with the knocking. Engine smells a little like exhaust? The exhaust from the tailpipe is not steady either. Any ideas or thoughts would help!
p.S. Trunk starts fine and there were no changes with gauges.(Oil pressure/temp)

thanks
brian
pooltableguy1219@yahoo. Com
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Sunday, December 14th, 2008 AT 2:26 PM

3 Replies

Tiny
JAMES W.
  • MEMBER
Did you blow a spark plug or the EGR valve? It's very rare, but it does happen. Other than that, you may have swallowed a valve. A compression test or just pulling the valve covers will verify that. Please advise.
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Sunday, December 14th, 2008 AT 3:44 PM
Tiny
POOLTABLEGUY1219
  • MEMBER
Finally found the problem! Felt air from the first cylinder, around the coil pack. Saw that the mounting bolt hole housing was cracked. Couldn't remove the mounting bolt, so I broke apart the crack and removed the coil pack to find that the spark plug was attached to the end of the pack! The treads weren't messed up that much. Never seen or heard of that. So I threw an old plug in, just to see. Solved the air problem. First time starting fine, second time missing, would still fire but hard to start. Gonna change out that old plug tomorrow, should solve the starting trouble right?
Also, engine code of insuf. Air something with the egr value?Replaced the egr value about 8-9 months ago. I was thinking it was called pcm value, but I when I saw a picture of it I knew. Thanks for all your help! First time emailer. Now life time!Brian
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Monday, December 15th, 2008 AT 10:21 PM
Tiny
JAMES W.
  • MEMBER
Glad you found it, Brian. If you need it, they make a tool made just for cleaning up spark plug threads. Ant parts store will have it. Anything else, you know where to find us. Have a nice Christmas.
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Monday, December 15th, 2008 AT 10:52 PM

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