Increased reports of MAP sensor hose failures!!!! DON'T WAIT to get bit!

[szohar]

Hosses

Mine failed two weeks ago on RT LTD 2012.

After replacing them the code didn't clear even after 15 minutes ride.

I went out for about a 30 minutes ride and the code was gone.

Thanks for the great info here I was able to take care of the issue myself even while I am still under warranty.

 

[Flamewinger]

This is for ALL year bikes? My 2013 ST hoses look OK. Not sure if I want to take the chance messing with them.

Thanks


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[finless]

Yes all year 998 engines. They all use the same hose.

Realize the hose can "visually" look fine but actually have hair line cracks sucking air.

Just recently (like 2 weeks ago when I posted this) a guy on facebook was having trouble and the same codes. He said he looked at the hoses and they looked fine. Once he got to the dealer.... it was the hoses.

Now maybe the RT's have more issue with these failing due to it being all covered up with Tupperware thus heat eating the hoses. So maybe the ST doesn't fail as fast? Just a thought.

Bob

 

[JerryB]

Hi Bob,

Re: Yes all year 998 engines. They all use the same hose.

Once you told me this ( in a few PM's between us ) it was a no-brainer. I call it Preventive Maintenance.

However, that is a much smaller hose than I had expected. :yikes:

Jerry Baumchen

 

[gypsy_100]

The current part number is 420960118 (updated from 420960115 in Oct 2014). $12 each. Did they upgrade the quality?? One can only hope. It would be nice if they told us why the part number was changed.

For those who haven't looked yet, this is what they look like -- small, about 4" long. After 30K miles, they took a set to this shape -- don't come that way. The end going into the TB fits over a serrated brass fitting that is really tight and it's hard to get the hose off. In contrast, the end for the MAP sensor just fits over a smooth plastic fitting that's easy on, easy off. There's a zip tie on my old one because we found it leaking at the MAP sensor fitting just due to not being tight anymore as it dried out. That was a temporary fix (I was throwing lean codes) until the new hoses were ordered and I put them in.