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Cleaned MAF Sensor 4-5 MPG Better

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  #1  
Old 07-11-2007, 11:21 PM
david0991 david0991 is offline
 
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Default Cleaned MAF Sensor 4-5 MPG Better

I changed my air filter with a MOPAR air filter no change in MPG. Then I saw this guy on "AutoWeek" cleaning his MAF sensor. After pulling the sensor it was caked with oil and dirt. I usedMAF Sensor cleaner and my03 RAM 2500 HEMI is now getting 4-5 MPG better than before! The truck went from 11.2 to 15.9 MPG on the highway.
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  #2  
Old 07-11-2007, 11:41 PM
HuntinHanson HuntinHanson is offline
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

Good to know. Where did you get the cleaner? How much did it run you?
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Old 07-11-2007, 11:44 PM
david0991 david0991 is offline
 
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

Checker Auto Parts - CRC Mass Air Flow Sensor Cleaner $3.95
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  #4  
Old 07-12-2007, 12:33 AM
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FFMedic1479 FFMedic1479 is offline
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

Nice tip... thanks bro
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Old 07-12-2007, 12:36 AM
david0991 david0991 is offline
 
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

Glad to help.
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Old 07-12-2007, 10:05 AM
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

What was the mileage on your truck prior to cleaning the MAF sensor? I have an '05 1500 with 20,000. Just wondering if it's worthwhile cleaning it now or waiting.
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Old 07-12-2007, 10:15 AM
eltupac eltupac is offline
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

As far as I know, our trucks dont have MAF sensors.Maybe the 2500's do.Do you mean the IAT sensor? an intake sensor? I checked the service manual and it does not mention a MAF. Where is the sensor that you cleaned?
Thanks.
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Old 07-12-2007, 10:29 AM
John M John  M is offline
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

I cleaned my IAT sensor with alcohol trying to improve my 9-10 mpg city and 11 mpg highway returns. So far, no improvement. Wish I had a logger to tell me what was being reported by the stock sensor. Otherwise my only choice is to blindly buy a new sensor hoping it'll help.
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Old 07-12-2007, 10:45 AM
Duso02 Duso02 is offline
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

eltupac hit it on the head. Sorry but we don't have a MAF sensor. We use a speed density system. You are referring to the Autoweek show where Pat Goss showed it, aren't you?Yeaah, the speed density system is the reason the CAI's and simple crap like that have much less effect on our engines then the MAF ones.
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Old 07-12-2007, 02:56 PM
bltp203 bltp203 is offline
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

Can someone post a pic of what part we are talking about?
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Old 07-12-2007, 06:36 PM
pakaalbite pakaalbite is offline
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

i was watching that same show and i was wondering if it worked. Thanks for the input
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  #12  
Old 07-12-2007, 09:44 PM
david0991 david0991 is offline
 
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

pics of the sensor. I have 50223 miles on the truck. Its great tooling around town getting 14.1 MPG compared to 10.1 MPG before. The 15.9 MPG was going 65 MPH on rolling hills east of Denver CO.

The guy at Checkers said a new sensor runs ~ $265 and not to touch the blue probe when cleaning it.

[IMG]local://upfiles/45084/4872C8528B1B438AB7D1CBD6274A2FE4.jpg[/IMG]

[IMG]local://upfiles/45084/4C4A16A62FA7405F9977B20740E2C1D8.jpg[/IMG]
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Old 07-12-2007, 10:25 PM
HuntinHanson HuntinHanson is offline
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

maybe it was theIAT sensor?
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  #14  
Old 07-12-2007, 10:38 PM
david0991 david0991 is offline
 
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

See pics above.

Is the sensor's techincal nameMAF or IAF or IATor speed density for a Dodge?

All I know is a MPG miracle occurred.

The AutoWeek guy also said to charge $$ if you clean your buddiessensor.
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Old 07-12-2007, 10:59 PM
Mattcmdr Mattcmdr is offline
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

Would all this apply to the 4.7L????
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  #16  
Old 07-12-2007, 11:06 PM
david0991 david0991 is offline
 
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

I bet the 4.7 hasa sensor for air flow inbetween the air filter and throttle boby. The AutoWeek guy's demo wasnot for apickup truck (maybe a jeep ??), he said in general there is a air flow sensor in between the air filter and throttle body.
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  #17  
Old 07-12-2007, 11:36 PM
HuntinHanson HuntinHanson is offline
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

yeah i'm almost positive thats the IAT sensor
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  #18  
Old 07-12-2007, 11:49 PM
david0991 david0991 is offline
 
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

Your right, the IAT (Intake Air Temperature) sensor is correct. What's a MAF between friends.

On page 6-24 of the Chilton Dodge PICK-UPS 2002-05 Repair Manual shows the same sensor for the HEMI infigure 8.2c

The 4.7 IAT is shown in figure 8.2b.

The 3.7 IAT is show in figure 8.2a
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Old 07-12-2007, 11:59 PM
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

I think it is worth a try... couldn't hurt, or could it?
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  #20  
Old 07-13-2007, 12:26 AM
david0991 david0991 is offline
 
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Default RE: Cleaned MAF Sensor 4-5 MPG Better

I thinka Dodge Dealer could do it for you.

But... Be careful with it. If you can't take the back off a watch to replace a batteryor can't afford a new IAT...then don't do it. As long as your remove it bytilting it toward you just enough to get it over the stop and rotate counter clockwise, disconnect the wiring, don't touch the probe, clean, reinstall clock wise andconnect wiring.

I let you in on what really went on during the cleaning. I removed the sensor, start to clean it with paper towel then sprayed WD40 on it, then I thought I should goto checkers and get MAF (IAT) cleaner. It worked out in the end for me. - Skip the paper towel and WD40, only use the CRC MAF cleaner and be sure not to touch the blue probe.

I am a repair hack but the MPG is real.
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Old 07-13-2007, 12:26 AM
 
 
 
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2000, 2003, dakota, diy, dodge, hemi, location, maf, mpg, quick, ram, rebuild, relearn, sensor, sensors

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