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  #1  
Old 10-13-2010, 10:53 PM
01smurfinator 01smurfinator is offline
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Default Odd noise over 2500 rpm

I have a 2001 xlt 4x4 4.0 with 85000 miles. I started noticing a noise tht I can't explain once I get to 2500 rpm. I can't pinpoint wheree exactly the noise is coming from or why it's happening and would like to find out about it without paying expensive diagnosis fees. If you or anyone you know has ever had or heard of this problem please let me know. I figured I could count on all the cool fellas here to help me out. Thanks again. Dustin
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  #2  
Old 10-14-2010, 03:01 PM
ZWilson07 ZWilson07 is offline
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Default Re: Odd noise over 2500 rpm

ha well you are def going to have to be more descriptive about the noise, you cant just say you hear a noise at 2500 rpm's and expect us to figure it out lol. SO try and pinpoint and be alil more descriptive and Ill try to help.
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  #3  
Old 10-14-2010, 04:51 PM
Jazz921 Jazz921 is offline
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Default Re: Odd noise over 2500 rpm

If it comes from the engine area I would guess its the timing chain tensioner issue that the 4.0 from that year has. To me the sound resembles water rushing really fast behind the dash and to the passenger side.
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Old 10-14-2010, 05:08 PM
edgeman4.0 edgeman4.0 is offline
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Default Re: Odd noise over 2500 rpm

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Originally Posted by Jazz921 View Post
If it comes from the engine area I would guess its the timing chain tensioner issue that the 4.0 from that year has. To me the sound resembles water rushing really fast behind the dash and to the passenger side.
x2.. its a bitch.
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Old 10-14-2010, 07:05 PM
ZWilson07 ZWilson07 is offline
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Default Re: Odd noise over 2500 rpm

hmm honestly I dont think its anything than hearing the truck run and all the different parts. I get that same sound on my 06, and I get different noises when its in each different gear of if its in neutral, I think its just the nature of the beast man. I would say just try not to worry about it. When I first got the truck I was always worrying about all the little sounds and how different things felt, and hated never having anyone elses to compare to you know to see if mine was normal. The best thing I did was crank up the radio so I dont hear them lol. you will go nuts trying to catch all of the little grimlins.
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  #6  
Old 10-20-2010, 02:03 PM
Solo V8 4G Solo V8 4G is offline
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Default Re: Odd noise over 2500 rpm

Check your heater control valve, there is a special service message from Ford that mentions the orifice for the valve being too big and allowing for water to tumble around in it. What you can do to verify this would be to loop your coolant system and eliminate the heater control valve from the coolant circuit.
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98 Ranger, Bagged 2600's in the front, 2500's in the rear. 3 Gal tank. DJM Upper and Lower control arms. 2 Thomas Compressors (garbage). 4 linked rear with C-notch. All (except cab) fiberglass. Custom Tribal Paint (soon to be Sunburst/burnt Orange).
Coming soon - 405HP 4.6L (SOHC), 4R70W
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  #7  
Old 10-20-2010, 02:34 PM
edgeman4.0 edgeman4.0 is offline
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Default Re: Odd noise over 2500 rpm

Quote:
Originally Posted by Solo V8 4G View Post
Check your heater control valve, there is a special service message from Ford that mentions the orifice for the valve being too big and allowing for water to tumble around in it. What you can do to verify this would be to loop your coolant system and eliminate the heater control valve from the coolant circuit.
wut?
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2001 Ford Ranger Supercab (4dr), Oxford White, 4.0 Sohc, 4x4, Manual trans (hurst equipped), 4:10's, 3" body lift.
Quote:
Originally Posted by Demon-FX4 View Post
The Edgeman sees his prey and strikes out from the darkness.
Quote:
Originally Posted by Rango88 View Post
Dont f+ck with Ch+ck
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  #8  
Old 10-20-2010, 02:50 PM
Solo V8 4G Solo V8 4G is offline
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Default Re: Odd noise over 2500 rpm

Yeah, its weird and I had one kick my @$$ to the high heavens until I pull the dash out looking for it and with a stethiscope heard the noise on the firewall, I had a tech grab the heater control valve and he felt it vibrating.
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98 Ranger, Bagged 2600's in the front, 2500's in the rear. 3 Gal tank. DJM Upper and Lower control arms. 2 Thomas Compressors (garbage). 4 linked rear with C-notch. All (except cab) fiberglass. Custom Tribal Paint (soon to be Sunburst/burnt Orange).
Coming soon - 405HP 4.6L (SOHC), 4R70W
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