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Old 12-20-2011, 11:18 AM
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Vtec

I had an overheating problem before, got my radiator hoses changed, bled the system, full cooling flush, and an oil change. The car ran awesome for like 3 days. Yesterday I was showing off and I hit Vtec hard, no problems or anything. An hour or two later I was driving with the heat off and my temp started to go up a little bit. Ive gotten rough on my car in the past 3 days without hitting vtec and it didnt overheat but as soon as the vtec engaged it slowly heated up. Whys that?
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Old 12-20-2011, 01:19 PM
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Re: Vtec

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Originally Posted by jdm98lude View Post
I had an overheating problem before, got my radiator hoses changed, bled the system, full cooling flush, and an oil change. The car ran awesome for like 3 days. Yesterday I was showing off and I hit Vtec hard, no problems or anything. An hour or two later I was driving with the heat off and my temp started to go up a little bit. Ive gotten rough on my car in the past 3 days without hitting vtec and it didnt overheat but as soon as the vtec engaged it slowly heated up. Whys that?
Almost definitely unrelated unless you just stayed in VTEC for several minutes.

It is conceivably possible for VTEC to become stuck on, so maybe you hit it and it stayed on afterward and the more aggressive cam timing caused your engine to heat. This is really unlikely though. My guess is that it's a coincidence that your overheating issue happened the one time you hit VTEC. If you think this is really the issue, though, I would suggest checking out your VTEC solenoid. This guide is very useful if all it needs is a cleaning.

On a more related note: Honda suggests changing the water pump at approximately 100,000 miles. Have you ever replaced yours?
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Old 12-20-2011, 01:53 PM
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Re: Vtec

Does the temp gauge needle climb when you're at a stand still or no?
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The H22 wakes up the Accord in the same way a set of secondaries did to your father's Oldsmobile.
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Old 12-20-2011, 04:51 PM
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Re: Vtec

Nah it stays even but I just changed everything, the waterpump and timing belt were done like10k miles ago. I wasnt sure if it was related to the vtec or not Im just curious as to what it could have been. Its driving normal today..
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Old 12-20-2011, 06:19 PM
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Re: Vtec

Still wouldn't hurt to clean the VTEC solenoid.
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Old 12-20-2011, 07:07 PM
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Re: Vtec

You'll be surprised how much of a difference a clean VTEC Solenoid makes. I suggest you DO clean it, you won't be disappointed.
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Old 12-20-2011, 08:49 PM
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Re: Vtec

Hey can anyone tell me how much total it would cost in labor to put a h22a vtec in a 92 prelude, right now I have an h23a non vtec right now and I was needing to know how much the parts and wiring would be, I'm buying the ECU with the h22 for around $1800
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Old 12-20-2011, 11:24 PM
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Re: Vtec

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Originally Posted by jdm98lude View Post
Nah it stays even but I just changed everything, the waterpump and timing belt were done like10k miles ago. I wasnt sure if it was related to the vtec or not Im just curious as to what it could have been. Its driving normal today..
From what I know, VTEC isn't related to cooling system. My H22 has been in VTEC as long as from 2nd gear all the way to 4th gear and no overheating whatsoever.
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The H22 wakes up the Accord in the same way a set of secondaries did to your father's Oldsmobile.
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Old 12-20-2011, 11:59 PM
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Re: Vtec

Hey can anyone tell me how much total it would cost in labor to put a h22a vtec in a 92 prelude, right now I have an h23a non vtec right now and I was needing to know how much the parts and wiring...
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Old 12-21-2011, 12:00 AM
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Re: Vtec

it costs as much as 1200 boxes of mac n cheese
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Old 12-21-2011, 12:22 AM
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Re: Vtec

Lol.

In my area, independant own shops wanted from $500.00+.
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The H22 wakes up the Accord in the same way a set of secondaries did to your father's Oldsmobile.
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Old 12-21-2011, 09:44 AM
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Re: Vtec

Hop off my thread brahh.

And alright so Ill try cleaning the solenoid today, I used the vtec once but kept the heat on and it stayed normal, no problems. Peculiar..
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Old 12-22-2011, 01:07 PM
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Re: Vtec

how do you clean the vtec sol
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Old 12-22-2011, 01:19 PM
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Re: Vtec

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Originally Posted by ash_vtech View Post
how do you clean the vtec sol
You unbolt the VTEC Solenoid off the head, there should be a screen on the solenoid. Make sure it's free of debris and isn't all covered up which can restrict the oil flow. Very easy to do.
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The H22 wakes up the Accord in the same way a set of secondaries did to your father's Oldsmobile.
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Old 12-22-2011, 01:34 PM
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Re: Vtec

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Originally Posted by ash_vtech View Post
how do you clean the vtec sol
See the second post in this thread, there's a link to a great guide.
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Old 12-22-2011, 02:46 PM
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Re: Vtec

Also, make sure your not low on oil - this could also cause the vtec to not engage.
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Old 12-22-2011, 05:18 PM
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Re: Vtec

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Originally Posted by SRV613 View Post
Also, make sure your not low on oil - this could also cause the vtec to not engage.
Not just low but that the engine's at it's normal operating temp. VTEC won't engage when engine's cold.
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Old 12-23-2011, 02:07 PM
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Re: Vtec

Yeah I only use it after Ive driven my car for most of the day. Oil is fine, this happened literally the same day I got my oil changed. It hasnt happened since but I havent really driven with the heat off, probably 10 min or so is the longest and it never overheated but I got nervous so I turned it back on.

I never got around to cleaning my solenoid but would needing a valve adjustment have anything to do with that?
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