Is there a map sensor or an airflow sensor on a ford E150 econoline van or both?
Yes there is a Map sensor.
Initial response is no - not likely. The mass airflow sensor (MAF) is involved in controlling the engine and how it runs. No reall direct involvement in "heat"... Second response - what kind of "heat problem"???? No heat coming from the heater inside the car? Engine over-heating? Either way, we've got both of those possibilities covered in the "Related Questions" below.
Check the basics first (air filter, belts, plugs) but the most likely cause is dirty throttle body or mass airflow sensor. You can easily clean both on your own although MAF sensor should be replaced after 100,000 miles. Throttle body can be cleaned with Seafoam penetrating lubricant and a toothbrush or wire brush. You may also want to test the alternator (Toyota calls it the generator)
On my 2000 Grand Cherokee Laredo 4.7 are 2 sensors. They are both located on drivers side of transmission. The one close to bell housing is input shaft speed sensor. The one at end of transmission is output shaft speed sensor. My input sensor went bad but replaced both. Both sensors are the same. Fairly easy to change out. About $47.00 each at dealer.
I have a 1997 and a 1998 tacoma and I had to change that same sensor on both of them so that it can pass smog and on both of the cars they were on the exhaust right after the catalic converter. It is bolted down into the pipe (Just so you know, it was a pain to take of. I had to take out of both the exhausts just to get to the sensor).
In most modern cars this sensor 'tells' to engine control (computer) the position of the crankshaft in ratio with the camshaft; both are syncroniced to an especific position to produce the combustion... (that means the camshaft sensor to do the same) ... with this readings (from both sensor) the computer fire up the fuel injectors & the ignition coil... by controling the frecuency of the fuel injection your engine is managed to proper performance &…
If both the idler air sensor and the oxygen sensor shows malfunctioning which should be replaced first on a ford contour 95?
Is the Crankshaft position sensor Cylinder head Timing chain or O2 sensor not part of the internal engine system?
All Northstars have 2 crank sensors, there are located just to the side of the oil filter adapter & behind the front motor mount. I strongly you forget about figuring out which one is sensor A & which is sensor B. Replace both! 93-99 are the same part number for both sensors & are interchangeable. 2000+ have 2 different part numbers for each sensor & are not interchangeable with the 93-99 sensor.