Thanks. According to the NAPA website, this hose is for fittings with a 0.125" (1/8") diameter. The hose itself has an inner diameter just slightly less -- 0.109375" (7/64"). Just in case a NAPA store isn't handy.
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Rough Idle, Check Engine then Limp Mode after Storage
- Thread starter nhoj
- Start date
Thanks. According to the NAPA website, this hose is for fittings with a 0.125" (1/8") diameter. The hose itself has an inner diameter just slightly less -- 0.109375" (7/64"). Just in case a NAPA store isn't handy.
Following up on my own post, I just explored the NAPA site further and found a silicone vacuum hose with the same dimensions -- NAPA Number H466. The silicone hose is for "harsh environments" and has a higher temperature rating than the standard black "rubber" (EPDM) hose. The silicone hose has a minimum bend radius of 1". I don't know if the original hose is bent sharper than that. The EPDM hose doesn't have a specified minimum bend radius, just labeled as "kink resistant". If temperature is really the culprit here, and you can route it so the silicone hose won't kink, silicone might be worth a try. ??
Rd_Runner
Member
Cracked Vacum Hose
If search the forum here you will find that cracked vacuum lines to the MAP sensor are a somewhat common failure.
Because of the heat under the plastic, it has been suggested that when this occurs to replace the broken line(s) with high temperature resistant silicone vacuum lines. to prevent future failure of the lines. I plan to buy and carry two spares for my RT-S my self.
Anyway.... I am really glad to hear you found the problem. :yes::yes::yes:
It should run excellent for you now.:2thumbs:
- Rd_runner
Well it was a cracked vacuum hose (see pics below). No critters, nests, no "chewing" and no bad fuel. The P2279 and P0106 codes were correct.
On the left side under the acoustic panel there are two small vacuum hoses (3.5" long) that run to the Manifold Air Pressure Sensor (M.A.P.S.). The one that is on the front of the M.A.P.S. adapter was cracked right through at its 90 degree bend. The one that is on the rear of the adapter was cracked too but not right through.
I replaced the hoses with 4" pieces of vacuum hose and the RT ran better than it did in the fall. After idling rough at first start it settled down to a smooth 1400 RPM. No check engine and no LIMP Mode, Yea...my wife is happy again.A test ride just confirmed this.
I can't see how this will not be a perpetual problem. The forward hose is quite near the forward cylinder. It will dry out from the heat, crack and probably split again. We're going to carry two 4" pieces of vacuum hose in the ever growing spares kit. Now that I know where to look its a 30 minute job to replace them (if the mirror cooperates!!)
Many thanks to everyone for their tips and suggestions.
John
View attachment 65621View attachment 65622
If search the forum here you will find that cracked vacuum lines to the MAP sensor are a somewhat common failure.
Because of the heat under the plastic, it has been suggested that when this occurs to replace the broken line(s) with high temperature resistant silicone vacuum lines. to prevent future failure of the lines. I plan to buy and carry two spares for my RT-S my self.
Anyway.... I am really glad to hear you found the problem. :yes::yes::yes:
It should run excellent for you now.:2thumbs:
- Rd_runner
Rd_Runner
Member
Ahhhhaaaa....I see as I finished reading the remaining posts in this thread others have already identified the better silicone vacuum line as a solution.....
Rd_runner
Chupaca
New member
As I see it..!!
from reading past history, most of the hoses failing are from those with the harsh climate changes and stored units. In those areas and conditions the silicone hoses would be a good idea. Really glad you found the problem and the advise given was helpful...:thumbup:
hyea:hyea:
from reading past history, most of the hoses failing are from those with the harsh climate changes and stored units. In those areas and conditions the silicone hoses would be a good idea. Really glad you found the problem and the advise given was helpful...:thumbup:
hyea:hyea:
GadgetGuy442
New member
I'm going to check my vacuum lines for sure now!!
One other thing that is good preventive maintenance to do is to excersize electrical connectors and use dielectric grease to prevent corrosion.
For every electrical connector you can get to, separate the two halves and re insert them together 4 or 5 times. Then separate one more time, and put some dielectric grease in each of the female terminal recesses, then reinstall.
This saved me from a throttle body replacement that the dealer was instantly ready to do, when all it turned out to be was a corroded terminal. HAVE PUT TWO THOUSAND TROUBLE FREE MILES ON MY 2010 RTS SINCE THEN, so am pretty sure I didn't need a new throttle body!!
It's worth a try, IMHO.
Bill
One other thing that is good preventive maintenance to do is to excersize electrical connectors and use dielectric grease to prevent corrosion.
For every electrical connector you can get to, separate the two halves and re insert them together 4 or 5 times. Then separate one more time, and put some dielectric grease in each of the female terminal recesses, then reinstall.
This saved me from a throttle body replacement that the dealer was instantly ready to do, when all it turned out to be was a corroded terminal. HAVE PUT TWO THOUSAND TROUBLE FREE MILES ON MY 2010 RTS SINCE THEN, so am pretty sure I didn't need a new throttle body!!
It's worth a try, IMHO.
Bill
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nhoj
Member
I ended up cutting it off with razor knife.
spidergreg
SpyderLovers Sponsor
Just changed out hoses
I got a 2012 RTS and got the P2279 code, changed out the hoses and all is well. It was a bit hard finding the front hose, removed the wire ties on the harness and was able to find it. My NAPA store only had the H458 and not the H466 silicone, so I replaced with the EPDM rubber this time. Will order the H466 for next year. Have to wonder why BRP doesn't use the silicone in the first place!!!
I got a 2012 RTS and got the P2279 code, changed out the hoses and all is well. It was a bit hard finding the front hose, removed the wire ties on the harness and was able to find it. My NAPA store only had the H458 and not the H466 silicone, so I replaced with the EPDM rubber this time. Will order the H466 for next year. Have to wonder why BRP doesn't use the silicone in the first place!!!
willowwonka
New member
2013 sts
Mine is sending same codes . Could it be my hoses
Mine is sending same codes . Could it be my hoses
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