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4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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  #1  
Old 02-15-2009
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Is every 4.0 noisy?

I put a new exhaust on my 4.0 and really noticed that my engine overpowers my exhaust noise wise...like a whining noise...ive got 170,000 miles...is she just getting worn out or can I do something to quiet her down??
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Old 02-15-2009
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maybe it's an old belt... my exhaust definitely overpowers my engine noise.
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Old 02-15-2009
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its hard to hear anything over my exhaust. but i'm straight piped. 109k and still trucking. my hurst shifter made the tranny noise more noticeable.
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Old 02-15-2009
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Originally Posted by MOTOunplugged View Post
maybe it's an old belt... my exhaust definitely overpowers my engine noise.
im gonna get a new belt tomorrow...dont you have an exhaust video on youtube?
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Old 02-15-2009
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what year truck?
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Old 02-15-2009
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my 4.0 is pretty quiet. But im running just cats, but if its a whining noise you could have a loose vacuum connection or something like that.
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Old 02-15-2009
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Noisy how? Maybe your fan clutch is frozen.
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Old 02-15-2009
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My engine even with the new belt is pretty loud
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Old 02-15-2009
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Quote:
Originally Posted by GT_hatchback View Post
im gonna get a new belt tomorrow...dont you have an exhaust video on youtube?
haha yea man i do.. two videos of it actually. one before xcal3 and one after.


Last edited by MOTOunplugged; 02-15-2009 at 10:30 PM. Reason: broken link
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Old 02-16-2009
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What you running for an exhaust?
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Old 02-16-2009
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i have close to 150 probably, the engine is real quiet except the faint tick.
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Old 02-16-2009
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Yeah, these engines get pretty noisey up in the rpms. Listen to this vid. The engine noise overpowers the exhaust and supercharger...
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Old 02-16-2009
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Originally Posted by robert ray69 View Post
Yeah, these engines get pretty noisey up in the rpms. Listen to this vid. The engine noise overpowers the exhaust and supercharger...
wouldn't you think the sucking of the intake causes the engine to be loud? BTW....freakin' love the fact that it's a supercharged ranger and it's a manual!!






my 01 4.0 is louder than my buddys 01 4.0. i'm not talking exhaust right now either....both idling in a parking lot, mine is noticeably louder running when standing in front of them.
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Old 02-16-2009
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Originally Posted by robert ray69 View Post
Yeah, these engines get pretty noisey up in the rpms. Listen to this vid. The engine noise overpowers the exhaust and supercharger...
Why did white smoke come out of your intake?
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Old 02-16-2009
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Originally Posted by robert ray69 View Post
Yeah, these engines get pretty noisey up in the rpms. Listen to this vid. The engine noise overpowers the exhaust and supercharger...
yeah but which run was that? your over 400hp? if i remember right that run was with Doug when you guys were messing with tunes. How much boost on that run? 8-9?
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Old 02-16-2009
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Why did white smoke come out of your intake?
I think he has the snow performance kit which injects a water/meth mix to cool the intake. I think. I am sure he will chime in.
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Old 02-16-2009
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i got an 04 4.0 and the motor is real loud in the high rpms its louder then my exhaust but then again my exhaust is still stock
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Old 02-16-2009
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I think he has the snow performance kit which injects a water/meth mix to cool the intake. I think. I am sure he will chime in.
oh yeah, didn't think about that. thanks.
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Old 02-16-2009
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my motor is def louder than my exhaust at idle but once i get on it all i can hear is my exhaust. but then again i am straight piped
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Old 02-16-2009
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What you running for an exhaust?
I'm just running cats and a y pipe...no muffler
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  #21  
Old 02-16-2009
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I'll try to get a video after work
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Old 02-16-2009
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That white puff of smoke is nos. I`m not over 400hp, that was nicksters old set-up I believe. The closest I got was 360hp and 417tq. Kept pegging the maf (gt maf w/t ee kit) so Doug had to back it down to 333hp and 370tq. Plus, Doug would`nt let me leave the dyno making 360 on a stock motor. Something about leaving engine parts all the way up I-20 to SC.
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Old 02-16-2009
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Quote:
Originally Posted by robert ray69 View Post
That white puff of smoke is nos. I`m not over 400hp, that was nicksters old set-up I believe. The closest I got was 360hp and 417tq. Kept pegging the maf (gt maf w/t ee kit) so Doug had to back it down to 333hp and 370tq. Plus, Doug would`nt let me leave the dyno making 360 on a stock motor. Something about leaving engine parts all the way up I-20 to SC.
well i was close!!
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  #24  
Old 02-22-2009
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Sounds like it could be one of your engines accessories water pump, fan clutch, tensioner, idler pulley or alternator could be making noise. Pull your belt off and run the engine for a minute see if the noise goes away if it does it is one or maybe two of the accessories. Spin each one to see which is the culprit.
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  #25  
Old 03-16-2009
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Ive been thinking about geting an electronic fan vs. stock belt driven fan. i heard this will quiet the enging nois consideraly exp. in high rpms. i have been interested in it for the hp and mpg gains.
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