Mass air flow sensor problems ford ranger

The trainer says that Ford has these problems more than other makes and the 4.0 engine seems to be more susceptible to the problem than other Ford engines. The Ford Ranger camshaft position sensor, which sends a signal to the ignition module informing it when each cylinder should fire, uses a synchronizer shaft that may produce intermittent squeaking or chirping sounds while the truck is in operation. O2 Sensor The Ford Rangers O2 (oxygen) sensor, which monitors the level of oxygen in the air/fuel ratio of the combustion mixture, can fail. Testing: With the engine running at idle, use a DVOM to verify there is at least 10.5 volts between terminals A and. It eventually just gets a little dirty or builds up its own patina in the filament wires. You will see the two sensor filaments, they look almost like the filaments on a light bulb. 3) Loosen the engine air cleaner outlet tube clamps, then remove the tube from the engine. These don't need to be torqued down, just simply hand tight.

Ford Ranger Sensor Problems eHow

It would run just fine but the idle began to drop every few revs from 700 to 500. March 14, 2011 Updated: November 17, 2014 Written by: Abraham Torres-Arredondo. Torx Bit T20 screwdriver or screwdriver bit for a power screwdriver. Replacing the camshaft position sensor and shaft typically solves the problem. These don't need to be torqued down, just simply hand tight. You will see the two sensor filaments, they look almost like the filaments on a light bulb.

To remove the MAF interior sensor wire, you will need a. Then, measure the voltage between MAF sensor connector terminals. When the sensor is dry, replace the sensor back in the MAF body and secure with the security star-head screws.

1999 Ford Ranger Mass Air Flow Sensor Failure: 2 Complaints

Remove the sediment with an electronics cleaner or MAF sensor cleaner. If you have had bogging or missing or idle spots, about every 25K miles plan on this quick cleaning job: Cleaning: When your engine is cool, remove the wiring clip from the side of the black plastic sensor part of the MAF aluminum body. The sensor does this by sending a signal, generated by the sensor when the incoming air cools the hot wire down, to the PCM. Carefully wipe the aluminum mount surface of the MAF body if there is any dust there, but be careful not to get dust in the mount hole. The patina seems to form faster if you live in a damp climate. You will see the two sensor filaments, they look almost like the filaments on a light bulb. To remove the MAF interior sensor wire, you will need a. These don't need to be torqued down, just simply hand tight. 3) Loosen the engine air cleaner outlet tube clamps, then remove the tube from the engine. March 14, 2011 Updated: November 17, 2014 Written by: Abraham Torres-Arredondo. Save Shares Saves Jupiterimages/m/Getty Images Camshaft Position Sensor. It would run just fine but the idle began to drop every few revs from 700 to 500. The sensor is mounted between the air cleaner assembly and the air cleaner outlet tube.

You'll need to remove these Torx head screws (A) This is what you'll be cleaning (B) T-20 Torx Bit This is a CRC electric contact type cleaner just for MAF's with a Petroleum. To remove the MAF interior sensor wire, you will need a. These don't need to be torqued down, just simply hand tight. Do not damage the sensing element or possible failure of the sensor may occur.