2000 Honda Accord Stumbles when warm

Tiny
OREGO004
  • MEMBER
  • 2000 HONDA ACCORD
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 118,000 MILES
My 2000 Honda Accords Engine runs great 99% of the time. However, about every 4-5 ignitions it stumbles a bit at start up but doesnt stall only looses power and usually when warm. It takes about 15 seconds to get back to normal idle speed, after that it runs great. The fuel injectors are clean as well as new spark plugs and coils. I dont think the fuel pump is faulty because it doesnt happen every time. Any constructive help would be greatly appreciated since I dont know why this is.
Tuesday, July 14th, 2009 AT 2:40 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,087 POSTS
Has the check engine light ever come on?
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Thursday, July 16th, 2009 AT 10:36 PM
Tiny
OREGO004
  • MEMBER
  • 5 POSTS
At first it came on. OBD II said it was random misfire. After that it hasnt come on and its been over 6 months and there is no change in fuel eficiency
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Sunday, July 19th, 2009 AT 7:20 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,087 POSTS
The only thing I can say is check fuel pump pressure. Also, has the car been tuned up reciently?
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Sunday, July 19th, 2009 AT 10:48 PM
Tiny
OREGO004
  • MEMBER
  • 5 POSTS
Yes, about 7 months ago(2000 Honda Accord V6 needs a tune up every 105,000 according to OEM). The problem started just after so I took it to get the spark plugs checked out as well as the connections and tech could not find anything wrong because they could not reproduce the problem. Battery charge is good as well.
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Tuesday, July 21st, 2009 AT 8:12 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,087 POSTS
Without the check engine light, it's hard to identify this type of problem. You most likely have an intermitent problem with a throttle position sensor or the idle air control valve. However, if they don't act up long enough to set the light, we are stuck guessing.
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Tuesday, July 21st, 2009 AT 2:04 PM
Tiny
OREGO004
  • MEMBER
  • 5 POSTS
Should I check the fuel pump fuse relay and battery charge since the Power Control Module needs an adequate supply of voltage to operate correctly?
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Tuesday, July 21st, 2009 AT 5:53 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,087 POSTS
That would be a good idea.
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Tuesday, July 21st, 2009 AT 10:41 PM

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