I have a line coming off of the throttle body in between the throttle body and the fire wall and it is routed to the front of the engine. This line is pinching itself closed just before the throttle body. What is this line and what is the fix?

This vehicle with this engine doesn't have a MAP sensor , has Mass Air Flow (MAF) Sensor

has cable from pedal to throttle positioner on engine side of firewall

just beneath throttle body follow air intake remove air intake u will want to a small plastic soda bottle will work before doing this make sure there are sources of ignition some gas may leek out u will have to push in plastic retainer and pull fuel line closest to fire wall be sure to use eye protection place fuel line in bottle opening have some body turn the ignition on this will bleed any air out of the line if no gas pumps out check fuses and fuel pump relay

these engine have a problem with the pcv valve vacuum tubes splitting and causing a vacuum leak, will need for part number and go to dealer to buy replacement hose

if i am not mistaken, the accellerator cable is routed pretty close to the battery.... check to make sure the cable is free and not abstructed from fire wall to throttle body linkage. also as silly as it sounds, check floor mat and make sure it didnt slide up onto or below gas peddle.

Check the vacuum line under and in front of the throttle body...with engine idling. It is located under where the air filter snorkel attaches to the engine. Then check all vacuum lines at the intake manifold. Check vacuum lines at distribution block on firewall and check the large brake booster vacuum line from one end to the other. You'll find it!

Hi, do you have the Windstar or Econoline van? I assume this is a Windstar. The procedure is below.

1. Disconnect the negative battery cable.
2. Drain and recycle the engine coolant.
3. Recover and recycle the refrigerant from the A/C system.
4. Remove the cowl top vent panel.
5. Diconnect the wiring from the alternator.
6. Loosen the air cleaner outlet tube clamp at the throttle body and remove the engine air cleaner assembly.
7. Disconnect the upper and lower radiator hoses and secure to engine.
8. Disconnect the heater water hoses and secure to body.
9. Disconnect and plug the A/C discharge and suction hoses and secure to engine.
10. Disconnect accelerator cable and speed control cable from the throttle body lever.
11. Remove the accelerator cable bracket from the throttle body.
12. Disconnect fuel supply and return lines from the fuel injection supply manifold.
13. Label and disconnect all engine wiring harnesses from the engine and secure to the body.
14. Label and disconnect all vacuum hoses from the engine.
15. Remove the gear shift cable from the transaxle.

Damage to the steering column air bag wiring cab result if the steering wheel is allowed to rotate freely. The wire is wound like a watch spring and can be overtightened and break of the steering wheel is rotated too far in either direction.

1. Lock the steering wheel with wheels in the straight ahead position by turning the ignition to the OFF position.
2. Raise and support the vehicle safely.
3. Remove the front wheels.
4. Drain and recycle the engine oil.
5. Disconnect and plug the transaxle cooler lines at the transaxle. Secure the lines to the radiator.
6. Disconnect the heated oxygen sensor wiring harness.

Do not allow the flex connector of the duel converter Y-pipe to hang unsupported or damage to the flex joint will result.

1. Disconnect the dual converter Y-pipe and support to the body.

The routing of the battery ground cable to the cylinder block is critical. It should go between the transaxle and the bracket. Take note during disassembly.

1. Disconnect the starter motor wires and secure out of the way.
2. Remove the starter motor.
3. Remove the engine rear plate and torque converter-to-flywheel nuts.
4. Disconnect and plug the power steering cooler lines.
5. Remove the upper bolt from the sway bar links.
6. Remove the dust boot from the steering rack pinion support by gently spreading the integral tension ring and pushing upward.
7. Remove the steering coupling pinch bolt form the steering column intermediate shaft at the steering gear.
8. Remove the intermediate shaft from the steering gear.
9. Remove the front stabilizer bar links.
10. Separate the front suspension lower arms from the knuckles at the ball joint.
11. Separate the tie rod ends from the knuckle.
12. Remove the front axle wheel hub retainers from the halfshaft ends.
13. Remove the halfshafts from the front wheel knuckle.
14. Support the front subframe, engine and transaxle assembly.
15. Remove the four retaining bolts and lower the engine transaxle and front subframe from vehicle.
16. Disconnect the power steering pressure hose from the power steering pump.
17. Attach and engine hoist and lift the engine slightly.
18. Remove the engine support insulators.
19. Lift the engine and transaxle assembly from the front subframe.
20. Lower engine and transaxle.
21. Supprot transaxle on a level stationary surface and separate the engine from the transaxle.

You need to determine if the ETC Failsafe is from a
bad throttle body motor (TACM) or coil misfires that are
putting it into failsafe.

The TPS Sensor you replaced,wasn't likely the issue.

Put in new spark plugs
The champion 1 piece ones 7989-- from Napa CHA 7989

You will need the Lisle 65600 Broken Spark Plug Remover Tool
as you will get a couple OEM 2 piece glued together ones break.

Remove PCM from fire wall to get to #4 Plug on pass side

Change the front O2 Sensors at 100,000 miles & clean the MAF
Sensor & Clean the Throttle Plate again.

it usualy runs along the frame on the same side the tank is on mounted to the inside of the frame