Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000

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Old Oct 21, 2004 | 03:14 AM
  #1  
adamC's Avatar
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From: Sacile, Italy
Default When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000

I have a '99 V6, and this problem just started. When I start the car, the engine will idle at 2500 RPM's. After about 30 seconds, it will drop to about 1000 and then revs up to 2000. It will continually do this. No idea why it started. Also, my steering is extremely hard, like there is no power steering. The car has not been driven for over a month. After I started it up the engine did it's strange thing, but this I tried to drive it and I started to smell a burning smell from the engine, but I don't know where it came from. Thanks for the help. I hope someone as heard of this before.

Adam
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Old Oct 21, 2004 | 03:19 AM
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From: Katy, Tx, USA
Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (adamC)

I would suspect a problem w/ belt drive preventing the PS pump from being driven. Bad belt, frozen AC, etc. The idle problem may be a symptom of excessive idle load.

good luck
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Old Oct 21, 2004 | 09:12 AM
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Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (KatyHonda)

ive had the same idle problem for a bit now, i never found out what the cause is...
but i did post a thread about it a couple of months ago, and majority of those who replied said to check for (vacuum leak/clean iacv/adjust idle/throttle body cable)
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Old Oct 21, 2004 | 01:31 PM
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Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (adamC)

sound like the iac is acting up disconect it and ajust your idle swrew down some then turn off the car plug the iac back up and reset the computer..if that doint work take the iac off and clean it out......and if that dont work u might have a bad fast idle vavle u can take it off and clean it 2 it is under the t/b or intake manifold...
or u can just block it off...
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Old Oct 21, 2004 | 08:40 PM
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Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (B SERIES US)

ive had it on both my accords, the first one got totaled before i could see what was wrong with it and the one im driving now my mom sent to the shop while i was out of town, it was like 300 though so i either got raped or its a simi serious thing, although i was a little sore when i got home so im thinkin i got raped
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Old Oct 21, 2004 | 09:01 PM
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Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (Mike813)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mike813 &raquo;</TD></TR><TR><TD CLASS="quote">ive had the same idle problem for a bit now, i never found out what the cause is...
but i did post a thread about it a couple of months ago, and majority of those who replied said to check for (vacuum leak/clean iacv/adjust idle/throttle body cable)</TD></TR></TABLE>



If not, then do a radi flush.
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Old Oct 22, 2004 | 04:29 AM
  #7  
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Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (SuperSlow)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SuperSlow &raquo;</TD></TR><TR><TD CLASS="quote">



If not, then do a radi flush.</TD></TR></TABLE>

would the radi flush help? i havent had that done for over a year...
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Old Oct 22, 2004 | 08:17 AM
  #8  
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Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (Mike813)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mike813 &raquo;</TD></TR><TR><TD CLASS="quote">

would the radi flush help? i havent had that done for over a year...</TD></TR></TABLE>

It can affect idle. Won't hurt, and you are due for one anyway. 13 bux for a gallon of new blue stuff at the dealer. Just need to remember to bleed correctly.
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Old Oct 22, 2004 | 11:17 AM
  #9  
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Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (adamC)

disconnect the negative battery cable for 15 minutes to reset the ECU.

An easy way to check for vacuum leaks is to spray carb cleaner (FI cleaner) from an aerosol can around the vacuum lines with the engine running, if the idle smooths out or the engine increases in RPMs you know you have a vacuum leak....

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Old Oct 26, 2004 | 01:34 PM
  #10  
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Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (93CivicSI)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SuperSlow &raquo;</TD></TR><TR><TD CLASS="quote">

It can affect idle. Won't hurt, and you are due for one anyway. 13 bux for a gallon of new blue stuff at the dealer. Just need to remember to bleed correctly.</TD></TR></TABLE>

i did the flush with 50/50 prestone and so far so good everything smoothed out.
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Old Oct 27, 2004 | 07:04 PM
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Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (adamC)

i had the reving problem with my '91 accord, took it to the dealership, turned out 4 out of the 5 speed sensors were bad and had to be replaced, charged me 800 dollars
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Old Oct 27, 2004 | 09:03 PM
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Default Re: When starting, engine jumps to 2500 rmps and then revs it's self from 1000 to 2000 (95Accordster

you really should get that fixed soon it wastes gas, i remember being beside a viper feeling like a complete dumbass, he must have thought i was trying to race him or something, he just gave me the dumbest look ever.... so naturally i just blew a kiss and winked, he just shook his head
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