3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
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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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?
2005 RAM V6 6-Speed ST
OEM Liberty Intake
OEM Bedliner/Power Windows
Snap-On Bed Cover
A/M Power Locks/Alarm
Pioneer 10" 100W Single Sub
Front Kenwood 6X9 4-way 80W
Rear MTX 5.25 Components 90W
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.
__________________ 03 Ram QC 4x4 - SOLD July 2012
Hemi / Laramie / Cooper Zenon 305/50/20
- Superchips, ebay 3.5in 1-pc intake, LED tails (OEM-style)
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.
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.
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.