Loss acceleration power possible clogged catalytic converter

Tiny
MIGHTY777
  • MEMBER
  • 2005 CHEVROLET ASTRO
  • 215,000 MILES
Car loss acceleration power. Last time I drove the car it would not accelerate above twenty mph and the engine cut off and would not start until it cooled down. Car turns off when engine gets warm. I smell what smells like burning plastic from underneath the steering wheel. I have multiple codes, o2 sensor, 2 and third gear shift solenoid, crank and camshaft position sensors. I did change the crankshaft position sensor and there was a dent on the sensor I removed. I believe the loss of power may be due to a clogged converter. Any help in diagnosing the issue will be greatly appreciated. Thank you
Sunday, January 1st, 2017 AT 5:15 PM

6 Replies

Tiny
JOHNNY G.JR
  • MECHANIC
  • 320 POSTS
Cover tailpipe with a wet cloth to see if engine stalls out.
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Sunday, January 1st, 2017 AT 8:12 PM
Tiny
MIGHTY777
  • MEMBER
  • 3 POSTS
Okay, I am going to give that a try tomorrow because I have to Jump start it. I think the battery has gone out on me. The car has been sitting for about five months.
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Sunday, January 1st, 2017 AT 9:14 PM
Tiny
MIGHTY777
  • MEMBER
  • 3 POSTS
I had to jump start it the other day and when it turned off it would not turn back on.
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Sunday, January 1st, 2017 AT 9:15 PM
Tiny
JOHNNY G.JR
  • MECHANIC
  • 320 POSTS
Charge battery slowly overnight, clean, wire brush all connections and reinstall battery.
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Sunday, January 1st, 2017 AT 10:19 PM
Tiny
JOHNNY G.JR
  • MECHANIC
  • 320 POSTS
You mentioned plastic burning, possible short circuit in wiring harness inside of steering column.
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Sunday, January 1st, 2017 AT 10:23 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
I would start with dropping the column covers and inspecting for any shorts in the ignition harness.
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Monday, January 2nd, 2017 AT 2:36 AM

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