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Stuck on the side of the road
can’t get much better Ronald helped me fix the slide that was stuck now I’m on the side of the freeway dead in the water
running good then down shifted and got check engine light then a stop engine light going slower and slower until she died.
will starts and move slow but not for long
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33 Replies
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fuel filters…2nd low coolant level. first is likely.
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fuel filter is worth a try I get a low coolant light I had that problem after leaving Prevost Houston once
a tow is coming soon but I’ll try the filter when they get me home can’t find someone to work on it today
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There are only 3 reasons for a stop engine light. Low coolant level, low oil pressure or high engine temp.
What did the gauges say? Can you read the codes on the message center? Do you have oil and coolant at proper levels? It could be as simple as a low coolant sensor gone bad and fixing it involves a paper clip. Or you could have a real problem such as low oil pressure.
Any time a CEL or SEL comes on the absolute first thing to do is scan the gauges. Number two in the chain of events is to get stopped in a safe place.
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I didn’t notice high temp checked oil and fluids but don’t think they are low
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And the third thing to do is after you’re pulled over and with the SEL or CEL lights on, and without turning off the key:
3) set the emergency brake, put the bus in park, and push the stop/override switch and count the flashes on the red light. This will tell you what’s wrong with the bus ‘now’, as opposed to reading inactive codes (yellow light) which are codes logged prior to your last key ‘on’.
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Your information center also stores the codes and can be read by pushing the buttons, selecting Faults and then Diagnostic Mode. If you don’t have the manual, we can tell you how to do it.
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got it across the freeway to a TA safe site, changed filters even added oil , got the guy to check codes with his tester and have no code after he cleared .
Still won’t run
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Greg,
Obviously there is a lack of information. You likely have to start by getting the codes. They are there. You said you got a CEL and and SEL and they just don’t go away unless an inexperienced technician cleared them.
If you said it shut down without any warning or SEL lights then the advice would be completely different, but now your objective is to figure out the codes because there is no other rational starting point.
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fault on engine
PID 103
Value to low
And
SID 147
Data error
This is all I have
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boots– on pressure side of turbo.( could have blown one) also make sure your boost sensor wire didn’t come loose. those are a couple of visual checks you can make easy. Note the connecting boots on the turbo to CAC and back to intake can actually blow off = no boost. your engine would idle but that’s about all. bob.
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I agree, I think PID 103 translates to turbo overspeed. Along with Bob’s suggestions I’d check for a leaking CAC.
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I can tell you from personal experience that if you blow a hose in the air intake system the coach will throw a SEL.
Start there. A bad CAC with the rest of the system intact will result in a CEL and a derating of the engine, but not a shut down.
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y’all are wonderful
i did find a boot off with a broken clamp
havent tried to go yet I need to clean up first but do feel like that’s it.
It makes sence with the way it’s acting
First rule ,look for the simple things first
thanks,thanks,thanks
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I have double clamped my hoses on the pipe sections to and from the CAC.
If I were to guess the hose most likely to blow off is the one from the turbo to the CAC.
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I was surprised that Prevost uses the blue hoses off the turbo,most mechanics think that the high temperature red silicone hoses should be used before the CAC.After I had a failure of a blue hose at the turbo I replaced it with the red high temp hose and also double clamped all of the hoses.
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