Map sensor question...
Lead Driver
Joined: May 2007
Posts: 8,608
Likes: 13
From: Belair md
he may not have a boost issue, that is all my truck would do and it builds the same way as mine does, i have no leaks on the boost side, i have no exhaust leaks,
after the intercooler and all the other mods it still builds boost the same as his and i can hit 20 psi if i hold it to 3400, but it is a slow climb and just barely hits that mark just before the limiter, i think a video is in order today before i head out,
after the intercooler and all the other mods it still builds boost the same as his and i can hit 20 psi if i hold it to 3400, but it is a slow climb and just barely hits that mark just before the limiter, i think a video is in order today before i head out,
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
Joe, the big difference between your truck and his is....his a dog.
Birdoprey, here is a list of items that the repair manual says to confirm for a Lack/Loss of Power:
PRELIMINARY CHECKS
Birdoprey, here is a list of items that the repair manual says to confirm for a Lack/Loss of Power:
PRELIMINARY CHECKS
- Perform the following preliminary checks:
- Confirm brakes are not dragging
- Confirm transmission and axle fluid levels
- Confirm transmission and axle tube are not "cooked"
- Check for engine overheating
- Check for oil in coolant
- Check engine oil level
- Confirm oil change within 8046.5 km (5000 miles), (5632.6 km [ 3500 miles] if severe duty)
- Check Filter Minder
- Check MAP sensor hose for holes, blockage, or disconnection. Confirm grey (not black) MAP sensor: F4TF-9S480-AA
- Check intake manifold system for leaks with soapy water with engine running. Include orange seals, gaskets and fittings
- Confirm acceptable SAE oil viscosity:
- 15W-40: above -18°C (0°F)
- 10W-30: from -23° to +32° C (-10° to 90°F)
- 5W-30: below 10°C (50°F)
- Check fuel quality by opening filter drain and cranking engine
- Confirm proper dipstick part number:
- Econoline: F5UZ-6750-A (Navistar: 1824405C1)
- F-Series: F4TZ-6750-E (Navistar: 1824405C1)
- Check for sufficient clean fuel
- Check for an intake restriction
- Check MAP sensor hose
- Check for proper MAP sensor (grey)
- Check intake manifold for leaks
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