Car rattles (under car) never heard before, then I start losing engine power

Tiny
DJB5411
  • MEMBER
  • 1992 HONDA ACCORD
  • 2.2L
  • 4 CYL
  • FWD
  • MANUAL
  • 270,000 MILES
My car has 270, 00 miles. I recently put a lot of work in it, new alternator, new distributor, new AC compressor, full tune up, oil change, new timing cover, timing cover gaskets, new valve cover gaskets, all new o- rings, new water pump, new thermostat. The car has been running like a beast! But the other day I start it up, car rattles (under car) never heard before, then I start losing engine power. The car got harder and harder to accelerate. Then it finally stop accelerating all together. I can rev the engine up too 5000 rpm's, and still no acceleration. Also, there is a loud noise as if I had a race car or a missing exhaust part. Can bad catalytic converter cause car to lose engine power, and stop car from accelerating at all? What is my problem? Any help greatly appreciated.
Saturday, September 24th, 2016 AT 12:20 AM

3 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Yes, a bad plugged catalytic converter can cause that to happen. Have you tried smacking the catalytic converter lightly with a piece of wood to see if it rattles?
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Saturday, September 24th, 2016 AT 1:20 AM
Tiny
DJB5411
  • MEMBER
  • 2 POSTS
No, I have been busy. I was try to kind of pin point it first. If it rattles does that mean it has failed? Needs to be replaced.
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Saturday, September 24th, 2016 AT 3:05 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Yes, it would have to be replaced.
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Saturday, September 24th, 2016 AT 7:21 AM

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