Engine/Transmission (1998.5 - 2002) 5 second delay

[Beernuts]

I finally got the thing figured out . Took it to Stevens Bay Area diesel in South San Francisco . He did some diagnostic work and determined it was the pressure sensor ( cummins part #3417030 ) . Charged me about 300 bucks for parts and labor , but the truck runs great . Time to loose the muffler and look into an edge EZ . Thanks for everyones comebacks . This sight rocks .

 

[ToolManTimTaylor]

Manifold air pressure sensor? 300. 00 includes labor and diag? Glad the truck works for ya once again.

 

[willyslover]

Just an FYI for future. . the MAP sensor can be cleaned . . if it wasn't an electrical issue you can do this your self easy...

 

[ToolManTimTaylor]

Thats why I asked about the cost. The MAP sensor is no more than 70. 00 and the rest is diag. I have cleaned the IAT in the past (in fact I am doing an otr experiment with a spare IAT in the engine compartment)

 

[JSHAW]

How do you clean it ?

 

[ToolManTimTaylor]

Well the Map sensor I honestly didn't think it could be cleaned. However If its anyhig like the IAT (which it isn't really as The IAT is a bulb type sensor and the MAP is a plunger / diaphram thingy within the sensor housing) you can simply unscrew it and hit it with some carb clean.

 

[Mundgyver]

What are the benifits of cleaning these sensor Power, mileage, or both? Has anyone done a study of the effects?





A curious mind is dangerous (at least in my case)





I am curious though as to the possible benifits and if anyone has documented them.

 

[Steve Campbell]

Mundgyver....

The IAT soots up after a while (especially towing with an exhaust brake) and some have said upwards of 1 MPG gain by just cleaning it.

 

[willyslover]

my Bad . . I was thinking of the IAT and posted on MAP

 

[JSHAW]

OK then, how do you clean the IAT sensor?

 

[willyslover]

just pull it with socket and ratchet, flush it out real good with brake cleaner. . might need a little brass brush help also. . air dry/blow out with compressed air and re-install

it's on the side of the block back behind [closer to driver] fuel filter.

note there are several very long interesting threads on the subject . . well worth the reading , do a search

 

[Mundgyver]

Steve,



If it can give a 1 mpg gain just by cleaning, then it would be worth the effort. Thats what, about 5% improvement in economy. Thats a pretty good jump.

 

[Steve Campbell]

I should qualify my remarks....

I guess it will only improve mileage when cleaned ..... if it needed cleaning. With an exhaust brake and a lot of towing, I was needing to clean mine very often. I wound up doing what Marco sugggested and put it in the air intake horn. In general, this is a small loss of fuel mileage, but now I never have to clean it and don't experience the 1-2 MPG losses I was during its "inebriated" state back in the factory location.

 

[ToolManTimTaylor]

https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=77102