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Where is the IAT Sensor Located at on 1987 ford f350 with a 6.9 diesel engine

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  • Cars & Trucks Master
  • 17,970 Answers

The Inlet Air Temperature sensor (IAT) located in an air passage in the intake manifold measures the incoming air temperature.
Cold air is denser, contains more oxygen, and therefore requires a richer mixture.

REMOVAL & INSTALLATION

  1. Disconnect the negative battery cable.
  2. Disconnect the wiring to the IAT.
  3. Remove the sensor from the intake manifold (MFI engines) or air cleaner/tube (SFI engines).
To install:
  1. Clean the sensor area. Install the sensor into the intake manifold and tighten to 12-15 ft. lbs. (16-24 Nm) on MFI engines. Fasten the twist-lock part on SFI engines.
  2. Attach the wiring to the unit.
  3. Connect the negative battery cable.
Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Posted on Feb 08, 2012

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SOURCE: replace fuel pump on 03 Ford F350 diesel

simple : obtain replacement pump from parts provider (no used stuff)

Now help me out here: thats the year they were bolted to the pass side front of engine
and not inside the tank right? (better go look to see for sure)

using a tube wrench unscrew the fuel lines (i use large wire nuts to temp block off fuel leakage)

with a 12 mm wrench undo the two side bolts holding the pump to block

wiggle pump it should come straight off

clean mounting place on block with solvent let dry

silicone back (or use gasket that comes with pump ) of pump

apply pump to block (depending on where crank stopped you may have some tension on arm you will have to overcome to get flange to meet block )

use locktite (blue)or simmiliar thread lock on bolts retighten firmly but not hang up the dog tight

use light grease or vasolene on tube connections don't try to tighten dry

Now the fun part your diesel now has air in the fuel system

there are two ways to remove this ( hard and harder)
your choice here are both methods

loosten the fuel supply line for #8 injector ( I did not say remove) 1 full turn ought to be enough

crank engine 30 seconds only
wait 5 minutes for starter to cool down
crank engine 30 sec again
did it start but runs rough while it's still running tighten #8 injector (caution fuel under high pressure)
engine smooth out good your lucky
engine did not start yet
wait 5 minutes
crank engine 30 sec again
start yet
if so tighten #8 injector up

Now here's something I've done to my diesel to make this much less a hasstle

trace fuel line as it comes up from pump
obtain a small low pressure electric fuel pump and a two short pieces of fuel line
and a few clamps

use tube cutter and cut fuel line just before it bends to go in filter
deburr edges
slide tube and clamps over pipe (both sides)
insert pump observe flow arrrow towards filter

the wires of pump can be stretched over to #1 battery terminals

now any time you change a filter or open your fuel system for any reason
all you need do is connect pump to battery
open sharader valve on top of filter for a few min
and start truck as normal
then disconnect wires and stow away for another day

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SOURCE: Need a pic veiw of 2004 ford f350 6.0L diesel EGR

1st of all when Ford started out with putting "EGR's" on those diesel engines, they rushed it and are nothing less than a pain in the ***! i recommend having an EGR cleaning service performed by your local Ford dealer, i know they charge up the wazoo, but they're the best people to perform the service period.this is a VERY common problem with those engines and that service is "supposed" to be performed every 30K I believe. i dont recommend attempting to remove and service it youself, this WILL only make it worse.

Posted on Mar 26, 2010

Testimonial: "Im relieved to here that someone else is thinking the same thing. Im still going to try it myself as i am somewhat skilled at this but Thanks a bunch!"

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