If I jam on my clutch hard, which happens often, there is a prominent thunk. Does this involve some kind of motor mount? (and it's not the sound of my foot hitting the floor)



This morning on my way to work I noticed the sound of trickling water every now and then. It sounded like quite a bit, and the sound was coming from behind the dash somewhere. Any guesses?



So I lied, here's a third...I know my AC doesn't work, the compressor's frozen and belt removed. But recently it got cold and I noticed my heater doesn't work either. I cleaned out the blower like someone suggested, but that didn't help but blow the air a little more. Suggestions are appreciated.

I'm guessing the car has cooling system/heater core issues.

Check your clutch master cylinder for that watery sound...as for the heater/ac thing...sounds like a clog/crimped hose or something...check your heater hoses...

Check like how? I mean, what do I look for? Just push the clutch and listen? Talk to me like I don't know what the hell's going on. :redface:

the air bubble sound is water in the heater core. the lack of heat could be a few things.

1. there is no coolant in the heater--> air bubbles?

2. the logicon/airmix motor is bad



the clutch thing could be a mount or maybe a driveline. does it make the noise if you get on and off the gas? or is it only when you push the clutch?



mike

It pretty much only makes that sound when I jam the clutch. It's like when I jam on the clutch real fast, it feels like I'm kickin the **** out of the motor.



Is adding coolant to the heater like just dumping it in, or is that involved (like pressurized or something)?

My GXL used to make alot of fluid noise from under the dash at high rpm, it probably still does it but with open exhaust it's not audible.... I researched the problem and it turned out this noise was coolant flowing through the return line of the heater hose. There was a TSB about this, you can view the summary here:

C15-039/87

hopefully that url works. I looked up the TSB in alldata and it turned out they just inserted an orifice in the return line to restrict the flow, the noise is just annoying, everythings functioning just fine (if this problem is what you are experiencing) and the orifice wil quiet it down but actually restrict flow through the hose....

I like their answers :bigok:

pengaru, that sounds right, I also drive a Bronco at work and it sometimes made the same sound, but nothing ever broke or worked improperly. Thanks for the info.

While talking it over with my boss, we recalled that the Bronco was real low in coolant. So that's probably a factor. I'll check my coolant level before I leave work.

******* cool, ur boss lets u browse the forum when ur at work

When functioning properly, the 2nd gens have a low coolant alarm, the sensor is in the top of the radiator. It will set off an idiot light and a loud assed buzzer.... If you find it's low check the sensor wiring/connector, it's a useful alarm to have functioning... I try to avoid opening the cap unless absolutely necessary since it can often introduce more air into the system thus requiring you to bleed it again, which is annoying. If the coolant is low and the sensor seems fine it may be worth a: testing the sensor and b: cold solder points fix (resolder some circuits which commonly fail on 2nd gens)

Is the heater core still hooked up? Someone might have by-passed it.

Also if you are getting no heat you might need to change your thermostat.

By the way, I have never touched that bleeder screw on any RX-7 that I owned and never had a air problem, I think if you fill the system properly you dont get air in the system.

I've had to use it a few times in the past, some people suggest using the water level sensor hole for bleeding instead actually... anyways, it's good to know it's there in case you do get air in the system at some point in time owning the car... perhaps replacing a hose on the BACV or thermowax. When that add coolant alarm goes off at seemingly random times but theres no apparent problems.. cracking open the bleed valve for a bit will usually solve it.



actually, with the aluminum radiator from srmotorsports you have to use the water temp sensor boss as a bleed valve to get the air out, since the elbow has no bleed valve in it.

Not really, I think he just accepts the fact that when someone has nothing to do they end up browsing the web. He does it too, he just doesn't come out and say it's ok.



Any tips on the clutch thing? Anybody?

sounds liyou have a bad front diff mount with the clutch thing. by "jamming the clutch" waht exactly do you mean??? pushing it in or hard takeoffs. for a visual of what the problem may be.



whne the front diff mount is bad. it sags when there is no presure on the driveline. when you take off, it slams upward into the mount , making the thud sound. when you let off it may also make this sound as it slams into the rear subframe.



the sound should come from right behind the seats...





just a guess



justin

It makes that sound when I depress the clutch pedal, and I figured out only at relatively low speeds.

sounds like the throw out bearing. btw nice avatar https://www.nopistons.com/forums/pub...IR#>/dunno.gif

i thought that avatar was you and i had nightmares about it https://www.nopistons.com/forums/pub...#>/biggrin.png



Justin

The little words on the bottom say "www.uglypeople.com" There are sections labeled ugly men, ugly women, and ugly? and this person was under "ugly?" It was like a bad car wreck...I just couldn't look away no matter how much I wanted to.

my turbo 2 makes water noise too but it does everytime i push the clutch in.

d'oh