loud roaring sound?

Topic: loud roaring sound? (Read 2913 times) previous topic - next topic

loud roaring sound?

November 17, 2007, 02:31:06 PM

about a week ago my car started to make a loud roaring sound while im driving, sounds like a fan kicks on high pushing alot of air. does it hot or cold. i had a mustang that made a similar noise to this and it turned out to be the alternator but i just replaced mine so im trying to hear any other ideas or areas of interest i should check out. im going to pop my old one back in since it tested good anyway. sometimes while on the highway it goes away but not a consitant rate to single out the fan clutch and the trans shifts perfectly.
ideas?

loud roaring sound?

Reply #1 – November 17, 2007, 03:40:35 PM

Wheel bearing?

loud roaring sound?

Reply #2 – November 17, 2007, 06:01:50 PM

Does your heater work?

loud roaring sound?

Reply #3 – November 17, 2007, 06:08:15 PM

When my fan clutch finally seized, it sounded like an old crop duster coming down the road and the car felt like it was really down on power.

loud roaring sound?

Reply #4 – November 17, 2007, 10:16:36 PM

Quote from: Sick88Tbird;188276

When my fan clutch finally seized, it sounded like an old crop duster coming down the road and the car felt like it was really down on power.

thats how it kinda sounds and feels right now like its lacking power on the highway. it gets the loudest right before it shifts up to the next gear and as soon as i let off the gas the sound goes away even if its still holding the gear. actually, i got my hand all mangled up in the fan today on accident but couldnt really confirm if its siezed or not as i wasnt trying to test it:hick::flame:

the heater works fine, no smells or leaks as well.

i believe my wheel bearings are in need of replacment but they arent the noise im hearing.

loud roaring sound?

Reply #5 – November 18, 2007, 02:10:06 AM

Rear gears have been known to whine.

loud roaring sound?

Reply #6 – November 18, 2007, 02:29:37 PM

Good suspicion. I replaced the fan clutch on our '88 TBird here about 6 months ago. Now, the car roars upon startup in the am and then settles down within 15 seconds. Seems like the fan locks up after the engine has been shut down overnight. Puzzling: birdsmily:

loud roaring sound?

Reply #7 – November 20, 2007, 08:14:45 PM

well, i went and tried to spin the fan by hand this morning while the motor was cold and spun the whole motor practically so i feel it safe to assume the clutch is shot. no big deal just odd how it went so suddenly.
anyway, when to my local autohole to get a new one. had them look it up and only 30 bucks so i had the man grab it only to have him put it back and after reading real big on it "made in china":mad:
so now ill ask does anyone have any advice on where i should go to get a decent fan clutch?
i havent tried the ford dealer as they were closed before i had the time to go there.

loud roaring sound?

Reply #8 – November 20, 2007, 08:19:33 PM

Looks like rockauto.com is out of Motorcraft fan clutches. So it fastpartsnetwork.
I'd try the dealer.

From what I've gathered on the A/C forums, the OEM clutches are much better quality than the parts you buy from standard parts stores. This includes Imperial and Hayden.

loud roaring sound?

Reply #9 – November 20, 2007, 10:26:14 PM

I solved my problem with a Flex-A-Lite electric fan kit...lol.

Mine went suddenly as well, after driving for 40 mins, I nailed it coming off a red light and the car was doing the "roaring" you described all through first gear, I laid off and it was fine. It was fine for the 45min ride home that night too, but the next morning...completely seized...I looked and there were little ball-bearings falling out.

loud roaring sound?

Reply #10 – November 21, 2007, 01:30:37 PM

Quote from: JKATHRE;188379

Good suspicion. I replaced the fan clutch on our '88 TBird here about 6 months ago. Now, the car roars upon startup in the am and then settles down within 15 seconds. Seems like the fan locks up after the engine has been shut down overnight. Puzzling: birdsmily:

I have a 5.0 Mustang Police Interceptor fan clutch on mine. Does the same thing:hick:

loud roaring sound?

Reply #11 – November 21, 2007, 09:05:00 PM

went to the ford dealer today to find one, discontinued 3 years ago:mad: i think they wanted $80 for it anyway:burnout:
checked rockauto.com and the one they had was like 46 bucks, i never got around to finding out what the shipping would be, plus the whole "dont have a credit card/bank accout/paypal" thing holding me up.
rs strauss has thiers for 36 bucks but wouldnt tell me the manufacturer, mightve had something to do with the attitude i had about them asking my personal info so they can look up a part which imo is bs :flip:
my next venture will be to carquest and see if they have it, in stock i mean.
:angst:

loud roaring sound?

Reply #12 – November 29, 2007, 08:54:26 PM

replaced the fan clutch with an autohole china made one, no more noise and got some power back, some. took all of 20 minutes to fix but didnt get around to it till today.
failed at the bearings from some of the washer jamming in there.
im going to hang onto the old one incase i ever need full time cooling:hick:

loud roaring sound?

Reply #13 – November 30, 2007, 12:15:01 AM

Huh, my first instinct was fan-clutch. Well, that or you had a lion under the hood!

loud roaring sound?

Reply #14 – December 07, 2007, 10:35:09 PM

Locked up fan does not equal full time cooling. Too much air flow through the radiator is nearly as bad as too much coolant flow through the radiator. When the air moves too fast through the radiator, it gets very turbulent, thus, decreasing effective cooling capacity. It's not as bad as the coolant going through too fast, though. The biggest problem is there will be excess wear on the serp belt (if it doesn't break), it will KILL your fuel mileage, and will certainly rob the car of power.

You're right about the discontinued Motorcraft fan at the Ford Stealership, but you can find reman Motorcraft fans in some places. I got one from Advance when mine bit the bullet a few years ago.

Same deal with the roar first thing in the morning when starting, but it calms down in about 15 seconds as stated. The viscous fluid in these things gets very thick when cool, and settles to the bottom of the clutch. You may even notice a little vibration because of the un-even torque with all the viscous fluid in one side of the clutch. Doesn't take long to warm it, though, and all is well again.

Oh yeah, the C3 was a typo on my part when I made the sig. It's a C5.
When I get Mrs. Paint a new ride, my '86 will become my project car. I'm debating a 5.0 and AOD swap, and may add a cowl hood to clear an intake for an F-150. OR, perhaps just a Taurus fan setup, and some mild adjustments to the 3.8 to get rid of CFI. CFI is the worst of both carbs and FI. The injectors are on the wrong side of the throttle plates.

I noticed you had an 86 as well. I've had a bizarre problem for a very long time with mine. I get no codes, but under light throttle after it's warm, puttering about in city traffic, it will just nose over like the engine was switched off. If I stick foot in it so that my knee is getting close to the throttle body, it'll take off like a scalded dog (well, a scalded OLD dog). Or, if I let off the throttle slightly, and feather it, it seems to pick back up. It NEVER stalls out completely, and idles as smooth as can be. New fuel pump (about 2 years old), no pressure loss at the throttle body, new TPS about 4 months ago, all new sensors except O2's. You have the 86 too, so I'm sure you're well aware of why the O2's haven't been replaced. I'm not getting O2 codes, and the only way I see getting the 123 side out is to drop the exhaust. (need to do that anyway cause I need a ler).

I'm just curious if you've experienced this problem as well. I'm thinking about trying a reman ECM on it, but I'm stingy about turning loose of the $150 not knowing if that will solve the issue. I've read there were some issues with the capacitors in our vintage ECM, but can't find enough reading material to back up the rumors.