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Just Bought, Small Problems

 
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Old 12-14-2013, 05:44 PM
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Just Bought, Small Problems

Hey everybody, I just bought a 95 Honda Prelude SR with 195,000k (about 120,000m) and have a couple things that need to be fixed on it and was wondering what may be causing these issues and what I can do to fix them. The car has a H23A1 engine (non-vtec).

- There is a noise coming from the right side of the engine bay, can't really explain the noise because it's not exactly a squeak or knock or chatter, but it appears to be coming from the powersteering pump as it changes while you turn the wheel. SOLVED Thanks Jamie!

- When I first start the car cold there is often a loud squeak that goes away after 5-10 seconds.

- Temp gauge is always reading full hot even after a cold start, I believe it's the sensor.

- The fan will not come on on its own, I have to run the a/c to override it. (Possibly related to above issue)

- The automatic antenna will make a noise on startup/stopping but does not actually move up and down.

and finally a friend of mine with a prelude told me I should remove the plastic liners from the wheelwells as they hold in water and salt which erodes the body, is this true?

Thanks in advance everybody who replies!

Last edited by 95PRELOOD; 12-16-2013 at 10:37 PM.
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Old 12-14-2013, 09:10 PM
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Re: Just Bought, Small Problems

The fender liners keep water from spraying all up inside the wheel wells. Above those are wire harnesses and the front unibody structure. The passenger side liner also protects the intake resonator assembly. If you take the liner on that side out, your intake will be exposed.

If you wash the car once a decade or so, it should remove the salt and keep it from rusting out prematurely.


The antenna, if it is an OEM unit is a convoluted affair. Most people just take them out and replace it with one of those generic aftermarket antennas.

Do you have the OEM or an aftermarket stereo?

If the antenna makes noise, the motor is turning, which is a good sign...sort of. I just priced out a new OEM antenna because I suspected my JDM half mast's motor was cooked. The bad news is, they're $505 Canadian. The good news is, they're discontinued, so your wallet is safe. If the motor is turning and it's making a clicking or grinding sound, don't use it. Unplug the harness until you are ready to troubleshoot.

Depending on how handy you are with a screwdriver, you can open up the OEM antenna unit and see what is going on in there.


I am now going to (re)open up a rare and rather expensive JDM half mast antenna to show what goes on in there...

There is a plastic cover with four screws (circled in yellow)



Remove the screws and the cover. Don't lose them. Have a rag or paper towel handy. The grease on the gears will get all over your hands. Once the cover is removed, you will see the following:


^The two visible gears are directly meshed with the motor. Check the teeth.

- Remove the two screws circled in yellow, and carefully lift the cover off, exposing the gears.

- When putting the unit back together, make sure the rotor, circled in red, is seated properly, or it won't turn properly, and the outside cover won't seal properly. Make sure the tab circled in green is also seated properly.

Once the cover is removed, you can see all the gears. Check for the teeth. The green thing is where the worm gear from the motor is. If all the gears look intact, pluck out the two gears that mesh with the worm gear. The motor (what resists the antenna being moved by hand) is now disengaged from the antenna shaft. Pull the antenna a bit. If it moves, the antenna shaft isn't seized.


If you pull it and see the gears moving, the gears and the toothed strip that moves the antenna (contained in a spool/cartridge on the other side of the unit) are meshed and in good shape.


If not, open up the other side of the unit:


This side is easy. Two screws. Pop off the cover, and you'll see a ring around the outside.



Pop it out and you'll see the strip with the teeth, hopefully. If the unit has been fighting itself for quite some time, it could have shed some of these teeth. If that's the case, it's pretty much done, unless you want to rebuild it with spare parts (that is the kind of thing I enjoy doing because I'm a lunatic, and I'm cheap). You can also get an antenna from another Honda of that vintage. I have heard that Accord antennas will fit.

I notice you said the car is an SR, and you mentioned kilometers. Fellow Canadian? Whereabouts?
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Old 12-14-2013, 11:37 PM
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Re: Just Bought, Small Problems

Quote:
Originally Posted by 95PRELOOD View Post
- There is a noise coming from the right side of the engine bay, can't really explain the noise because it's not exactly a squeak or knock or chatter, but it appears to be coming from the powersteering pump as it changes while you turn the wheel.
A groan? If so, it's the pump. How's the fluid? And make sure you use Honda fluid, or something specifically marked for use in Hondas. If you're not sure what's in it and it's making noise, it might be worth flushing the system and refilling it.

Quote:
- When I first start the car cold there is often a loud squeak that goes away after 5-10 seconds.
Slipping accessory belt. Check the tension.

Quote:
- Temp gauge is always reading full hot even after a cold start, I believe it's the sensor.
The temperature sensor is on the end of the engine next to the water pump. Are you getting a check engine light?

Quote:
- The fan will not come on on its own, I have to run the a/c to override it. (Possibly related to above issue)
Might be, although the fan controls are complex. There are a pair of thermoswitches -- one by the thermostat, and one by the water pump, plus a relay in the underhood fuse box, and a control module in the passenger footwell by the ECU -- check those as well. The fan control circuit on 4th gens isn't well documented, so you just have to check the components.
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Old 12-15-2013, 12:43 AM
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Re: Just Bought, Small Problems

Wow SirSSpec thanks for such a detailed response! But one thing I noticed you said that I should pull the antenna to test but as is I can move the antenna freely up and down, does that include the rear liners as well?

I'm from Nova Scotia, how about you?

Thanks Jamie! I'll check the fluid, can I simply tighten the accessory belt slightly? The engine light is not on, no lights are currently on (they do all turn on during startup). I'll check those components you mentioned for anything that doesn't look right.

Thanks again for the quick an detailed responses guys!
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Old 12-15-2013, 09:56 AM
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Re: Just Bought, Small Problems

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Originally Posted by 95PRELOOD View Post
...can I simply tighten the accessory belt slightly?
That should do it.
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Old 12-15-2013, 11:24 AM
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Re: Just Bought, Small Problems

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Originally Posted by Jamie View Post
That should do it.
Great! I'll let you know how it goes, currently a blizzard outside so it might not be for a little while.

What about the temp sensor since my check engine light is not on?
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Old 12-15-2013, 12:03 PM
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Re: Just Bought, Small Problems

Honda Prelude Power Antenna Mast 1988-1991
^^ aftermarket electric antennas cheap.
It's likely the plastic 'whip' is stripped or the gear.
Since spec did the diagrams, that should help you replace it.
The link is for 91's and the 4th gen differs, but it's a start.
I have one from these folks. It works perfectly.

Download a service manual from the diy section. And all the sensors, switches etc Jamie mentioned are shown in diagrams.
I just had a no fan issue resolved, that was a multitude of problems causing neither to work. If your condensor fan operates, (the one you say works) just use it until you figure out why the cooling fan won't.

Place cardboard under your cars engine to check for drips. Many times the Honda ps pumps leak the fluid in small amounts leaving a small puddle. Over time if the resevior gets too low, air can get in the system causing noise. But it's usually constant when that happens.

You may consider removing the liners to clean everything real good, coat with rust inhibitor and re-installing them. Then keep that area clean as practical.
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welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
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Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
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I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

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Old 12-15-2013, 12:52 PM
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Re: Just Bought, Small Problems

Definitely get a shop manual. That has a procedure for testing the temperature sensor.
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Old 12-15-2013, 01:26 PM
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Re: Just Bought, Small Problems

Quote:
Originally Posted by bykfixer View Post
Honda Prelude Power Antenna Mast 1988-1991
^^ aftermarket electric antennas cheap.
It's likely the plastic 'whip' is stripped or the gear.
Since spec did the diagrams, that should help you replace it.
The link is for 91's and the 4th gen differs, but it's a start.
I have one from these folks. It works perfectly....
I'll definitely go take a look if I can't just simply replace a few components as SirSSpec mentioned before.

Quote:
...I just had a no fan issue resolved, that was a multitude of problems causing neither to work. If your condensor fan operates, (the one you say works) just use it until you figure out why the cooling fan won't....
By turning on the A/C it overrides the cooling fan turning it on, so the fan works I just can't figure out why it does not turn on its own.

Quote:
...Place cardboard under your cars engine to check for drips. Many times the Honda ps pumps leak the fluid in small amounts leaving a small puddle. Over time if the resevior gets too low, air can get in the system causing noise. But it's usually constant when that happens....
I'll definitely do that once the weather is a bit better, currently in the middle of a blizzard, the noise is constant just changes as you turn the wheel. I'll pick up some fluid for it.

Quote:
...You may consider removing the liners to clean everything real good, coat with rust inhibitor and re-installing them. Then keep that area clean as practical...
I'll do that if I get a chance to use a garage otherwise I'll have to wait till spring when I'll do a good clean to get all the salt off.

Quote:
Originally Posted by Jamie View Post
Definitely get a shop manual. That has a procedure for testing the temperature sensor.
I'll go get one now.
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Old 12-15-2013, 01:40 PM
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Re: Just Bought, Small Problems

Quote:
Originally Posted by 95PRELOOD View Post
Wow SirSSpec thanks for such a detailed response! But one thing I noticed you said that I should pull the antenna to test but as is I can move the antenna freely up and down, does that include the rear liners as well?

I'm from Nova Scotia, how about you?

You're welcome. I hope it helps diagnose the problem for you.

If you can move the antenna by hand without opening it up, the "whip" or some of the gears are more than likely missing teeth. My antenna will not move at all by hand, unless I pull those gears out.


I don't think the rear wells have plastic liners in them. The 5th gen doesn't. I'm not sure about the 4th yet. I'll have to look.

=/ I'm in snowy Toronto.
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1996 Prelude SR(Si), daily driver --> H23A VTEC (+ 4ws) [SOLD]
1990 Nissan 300ZX [Summer fun]
1994 Subaru SVX LSi [sold]
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Old 12-15-2013, 01:54 PM
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Re: Just Bought, Small Problems

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Originally Posted by SirSSpec View Post
...If you can move the antenna by hand without opening it up, the "whip" or some of the gears are more than likely missing teeth. My antenna will not move at all by hand, unless I pull those gears out...
I'll definitely try and take that apart and see if I can replace the gears once it's not so snowy

Quote:
...I don't think the rear wells have plastic liners in them. The 5th gen doesn't. I'm not sure about the 4th yet. I'll have to look...
My car has them in the rear wells and my buddy who mentioned I should take them out has a 5th gen. So I should remove them from the rear wells?

Quote:
...=/ I'm in snowy Toronto...
Currently in the middle of a blizzard here, about a foot down already, makes it difficult to do much with the car outside.
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Old 12-16-2013, 10:35 PM
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Re: Just Bought, Small Problems

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Originally Posted by Jamie View Post
A groan? If so, it's the pump. How's the fluid? And make sure you use Honda fluid, or something specifically marked for use in Hondas...
Update: Topped up the fluid with Bardahl Powersteering fluid for Hondas/acuras and the noise stopped, thanks a lot!
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Old 12-17-2013, 10:21 AM
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Re: Just Bought, Small Problems

^^ woohoo!! Great news.
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Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
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Old 12-17-2013, 07:03 PM
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Re: Just Bought, Small Problems

Quote:
Originally Posted by SirSSpec View Post
...If you can move the antenna by hand without opening it up, the "whip" or some of the gears are more than likely missing teeth. My antenna will not move at all by hand, unless I pull those gears out...
Update: So I have some good news and some bad news... The good news is the gears and whip are both fine, the bad news is... well...


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