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CR-V::Clinical Rounds Routine maintenance, problems, solutions and repair

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  #1  
Old 04-21-2008, 06:18 AM
jitu jitu is offline
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Default High RPM - Driving Uphill

98 CRV, 140K km, regularly maintained with Honda parts and fluids…

This has been an occasional problem with my V, while driving uphill (minor hill) engine revs up high 3000 rpm (it is common stuff for V), once I am over the hill it suddenly revs up even higher about 3500 rpm for a second and then drops back to normal, for that moment it feels like engine will split in half…If I start driving uphill (from complete stop position), it holds gear and does the same thing before changing gear to the next one.
I am thinking to check and clean all three valves (Lock up control, shift control and Linear solenoid)
Few questions I would like to ask you are:
(1) Should I clean these valves or leave them as is…?
(2) Is this a sign of future problem…?

Any remedy would be appreciated…!
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Old 04-21-2008, 06:37 AM
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Transmission issue???
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Old 04-21-2008, 08:17 AM
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1. What is your coolant level like? It should be at the max line.

2. When did you change your transmission fluid last? Every 30,000 miles

3. If everything is good there, You could clean the valves in question. Since transmission fluid is relatively inexpensive, you might want to consider doing an x3 drain and fill before that. If the drain & fill and valve cleaning doesn't fix the problem, you will probably want to take it to the dealer. First, do an extensive search of this forum using the advance feature, select 1997-2006 forum and try different themes using not shifting, shifting early and so on in case I missed something.
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Old 04-21-2008, 08:26 AM
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1) Read up on Grade Logic, see if it behabes just as Grade Logic is supposed to.

2) Revving to 3000 RPM or even 3500 RPM will not split your engine in half. It is designed to run at 8000 RPM all day long. Honda builds race engines, and you got one under the hood. In fact, if you don't let her rev, you will have more engine problems than if you redlined it once a week or so.

3) You should, however, adjust the valves on the engine every 30,000 miles.
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Old 04-21-2008, 09:06 AM
jitu jitu is offline
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(1) Coolant level is at the max level, it was replaced in fall 2007 (using Honda coolant) along with new aftermarket radiator.

(2) I have put 40000 km since my last transmission fluid change, it was done 2X using Honda fluid.

(3) Yes I have read Grade Logic info and has explained well.

As per Helm service manual I will check all 3 valves, but it do not have info on how to clean them...any light on that?

Thanks for quick reply.
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Old 04-21-2008, 10:17 AM
sirmerced sirmerced is offline
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I go up a big hill every day and my V acts the same way. I think we are just SOL with the auto trans.
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Old 04-21-2008, 10:19 AM
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It still sounds like AIR in the cooling system, or under-filled tranny. Check to see there's no air leaks between the reservoir hose and the rad cap.

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Old 04-21-2008, 12:29 PM
rdp5008 rdp5008 is offline
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My '99 doesn't like to shift after going up a hill. This results in high revs on flat ground right after going up a hill, similar to what you are describing. I'm not sure if this is normal, since this is a new car to me.
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Old 04-21-2008, 03:47 PM
mdugan7000 mdugan7000 is offline
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Quote:
Originally Posted by rdp5008 View Post
My '99 doesn't like to shift after going up a hill. This results in high revs on flat ground right after going up a hill, similar to what you are describing. I'm not sure if this is normal, since this is a new car to me.
It is NOT SUPPOSED TO SHIFT IMMEDIATELY after you crest a hill!

It is in your owner's manual and it is called "Grade Logic Control". It also downshifts for you when going downhill and braking. Honda even has a graphic for you to view on the new CR-V page. This has been a feature of all CR-V's since 1997!

edit - There is absolutely NOTHING WRONG with 3500 or 5000 or 6500 rpm's on your Honda engine! If you don't exercise it routinely, woe be to your wallet. It also gets better mpg if you don't baby it.
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Old 04-21-2008, 04:04 PM
rdp5008 rdp5008 is offline
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Okay, thanks. I was just pointing out that the same thing was happening to me. I am not worried about it and I am familiar with the grade logic control. It is just very strange for me because I am coming from a little manual tranny subaru impreza. It takes some getting used to not having control over your transmission. I wish I had a manual CRV!

Thanks for the clarification.
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