Question about 1989 Honda Prelude

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My 1989 prelude looses rpms when i press the brakes

My 1989 prelude looses rps when i press the brakes down, what could it be ? car has dual carbs' i don't know if that would make a difference !

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Hi,
Sounds like your power brake Vacuum Booster has a leak. The vacuum
leak will cause the engine to lose RPM.
You should have it checked out as it will eventually start affecting your
brakes.

Posted on May 27, 2010

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1989 Honda Prelude, passed all smog tests except idles at 1100rpm...what's the problem?


start spraying carb cleaner around the intake and listen for rpm drop.

Oct 09, 2012 | 1989 Honda Prelude

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Carburetor flooding out of the air filter side of the dual carburetors on my 1990 honda prelude. will only happen after its been runnin for a bit. idle is not perfect and may have spmething to do with it....


This sounds like a float problem. The carbs have a fuel chamber each and the amount of fuel in the chambers is controlled by a plastic float and needle valve. Carb will require stripping and cleaning and float adjusted. Not a job for DIY i'm afraid

Jul 31, 2010 | 1990 Honda Prelude

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There is a warm up valve on the throttle body(should have 2 small coolant hoses). remove the valve and have someone start the car while you block the port to the valve on the intake. If that clears up the problem you can cut a piece of cardboard to mount in between the valve and intake.should straighten it out.

Oct 01, 2009 | 1989 Honda Prelude

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My brake padel gos alltha way down


  1. You might simply need to replace your brakes, they're wearable items and don't last forever. But it's not fine one day, bad the next. You hear any scraping?
  2. You might need to only add brake fluid (any leaks on the ground?)
  3. Air in the hydraulic brake lines. Old lines, failing brake booster, or faulty service could also be the culprit.


Jun 11, 2009 | 1989 Honda Prelude

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1989 Honda Prelude runs at hight rpms until warmed up


check for vacumm leaks or disconnected vacuumm hoses around the in take manifold!

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1989 Honda prelude brakes sticking.


pistons in brake r sticking need to b stripped n cleaned

Nov 16, 2008 | 1989 Honda Prelude

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Clutch


it is a hydraulic clutch system, especially on the 89 prelude. I have one the exact year model, and i had a hole in the slave cylinder hose going to the transaxle from the slave cylinder.

To refill the reservior, use DOT 3 brake fluid. The reservoir is located just to the left of the brake fluid reservoir underneath the hood on the driver's side firewall. you can't miss it.

Sep 09, 2008 | 1989 Honda Prelude

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89 honda prelude


Your Hand Parking Brake Lever Is Loose And needs To Be Adjusted
If That is Not The issue then Check The Brake Fluid canister And See If It is low on fluid
If That is Not The issue then Take It to A mechanic ...Do Not play around when it comes to safety with vehicles ...

Aug 14, 2008 | 1989 Honda Prelude

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