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CVO Technical => Milwaukee-Eight => Topic started by: newseultra07 on August 01, 2020, 10:34:13 AM

Title: Check Engine & Temp Light on
Post by: newseultra07 on August 01, 2020, 10:34:13 AM
I had my bike in shop for a warranty repair. ( Changed out rocker box cover) Also had them do a brake flush & check radiator fluid levels. Got bike back & when I was riding home the check engine light & temp light came on and noticed the bike was kinda sluggish. ( The temps outside were 100) When I got home I let it cool down & then rolled the throttle 1/2 way and the fans came on. I checked the codes & it came back as P1019. The next morning I rode it again & the lights weren't on at startup but about 15-20 miles down the road they came back on. So I put in trailer and took back to dealer to see what problem is..I don't think anything they did would cause this but who knows..Ive never had this problem in past. Of course I'm about a month out of warranty.. I sure hope its nothing serious... Bike is a 2018 CVO Anniversary.
Title: Re: Check Engine & Temp Light on
Post by: GregKhougaz on August 01, 2020, 01:16:06 PM
It seems the problem is likely related to whatever the dealer  did for your warranty repairs. First thing I would check is the coolant level in the radiators. The dealer could have emptied the coolant and then forgotten to refill.
Title: Re: Check Engine & Temp Light on
Post by: CVO Couple on August 01, 2020, 01:31:16 PM
Do you have the old style coolant pump?


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Title: Re: Check Engine & Temp Light on
Post by: newseultra07 on August 01, 2020, 01:33:22 PM
Said all they did was verify fluid level was good in radiator tanks.  I had the brakes flushed and new fluid put in. Hopefully its just something simple causing the lights to come on..
Title: Re: Check Engine & Temp Light on
Post by: newseultra07 on August 01, 2020, 01:34:35 PM
Said all they did was verify fluid level was good in radiator tanks.  I had the brakes flushed and new fluid put in. Hopefully its just something simple causing the lights to come on..


Its a 2018. There is a newer coolant pump out now.??? I knew there was anew oil pump but I replaced that already.
Title: Re: Check Engine & Temp Light on
Post by: KGB on August 01, 2020, 01:54:22 PM
Do you have the old style coolant pump?


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M8 came with the new style coolant pump


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Title: Re: Check Engine & Temp Light on
Post by: Unbalanced on August 01, 2020, 02:19:37 PM
Your coolant level could be low take off the cam cover side,  lowers cap where the storage used to be on the lowers.  simple to do small screw driver pry lightly.   You check level there. 

Next is sensor or radiator.    I was lucky mine was just low on coolant.
Title: Re: Check Engine & Temp Light on
Post by: newseultra07 on August 01, 2020, 06:24:52 PM
Your coolant level could be low take off the cam cover side,  lowers cap where the storage used to be on the lowers.  simple to do small screw driver pry lightly.   You check level there. 

Next is sensor or radiator.    I was lucky mine was just low on coolant.

I sure hope it’s something simple.  Already dropped it off Friday.  They checked the coolant level and all was good.  And I don’t have any leaks.
Title: Re: Check Engine & Temp Light on
Post by: grc on August 01, 2020, 09:29:12 PM

Make certain when you do that radiator fan test to verify the coolant pump is also running.  The pump should also run when you run the test.  There have been a lot of coolant pump failures, but the timing in this case is rather suspect.  No problem, take bike in to shop, on the ride home suddenly have a problem.  Shops have been known to screw up one or more other things when they work on something else, especially if they have to disassemble parts or move wiring out of the way to do what they set out to do.

Jerry
Title: Re: Check Engine & Temp Light on
Post by: Threephase on August 01, 2020, 11:45:01 PM
To change out the rocker box cover it is necessary to disconnect the coolant lines from the heads. This introduces air into the lines. When you re-install everything And just “top off” the coolant reservoir, it will not be completely full. Running the engine for 20 mins or so will draw the extra coolant out the reservoir and start the heads to overheat. Run your bike again for the 15-20 minutes as before, and then look at the level in your reservoir. It will be low.

I learned this the hard way when I changed my lower rocker covers out to Color matched powder coated. Took two tries to get the coolant level  correct in the reservoir.
Title: Re: Check Engine & Temp Light on
Post by: grc on August 02, 2020, 10:51:42 AM
To change out the rocker box cover it is necessary to disconnect the coolant lines from the heads. This introduces air into the lines. When you re-install everything And just “top off” the coolant reservoir, it will not be completely full. Running the engine for 20 mins or so will draw the extra coolant out the reservoir and start the heads to overheat. Run your bike again for the 15-20 minutes as before, and then look at the level in your reservoir. It will be low.

I learned this the hard way when I changed my lower rocker covers out to Color matched powder coated. Took two tries to get the coolant level  correct in the reservoir.

What he said ^^^^^.   Getting all the air out of the system was a common issue from day one with the Twin Cooled system, just as it is on many modern automobile engines.  This post makes me wonder just what the shop did, since they claim they only inspected the coolant level and found it to be OK.  Is there some special trick where you can change out rocker covers without removing the coolant lines?  Or a secret method that prevents loss of coolant and introduction of air into the system?  Doubtful.

As previously noted, first recheck the coolant level yourself, then verify the pump is actually running and circulating coolant.

Jerry
Title: Re: Check Engine & Temp Light on
Post by: newseultra07 on August 08, 2020, 10:42:58 PM
Got bike back from shop. Said couldn't find anything that would cause the lights to come on. Said ran full diagnostic on it & all was good. Said the codes were historic. Service guy said if the bike runs lean or rich it would trip the check engine light.. Guess will see once I ride it again. But rite now its just too HOT out to enjoy...Plus I need to have bike tuned since I changed out the cam. I'm pretty sure the lights will come back on once I ride it again...
Title: Re: Check Engine & Temp Light on
Post by: CVO Couple on August 09, 2020, 08:11:21 AM
When was the cam changed?


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Title: Re: Check Engine & Temp Light on
Post by: newseultra07 on August 09, 2020, 10:16:43 AM
When was the cam changed?


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2 months ago.
Title: Re: Check Engine & Temp Light on
Post by: CVO Couple on August 09, 2020, 11:51:43 AM
Did you put a new map or tune when you changed the cam?


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Title: Re: Check Engine & Temp Light on
Post by: newseultra07 on August 09, 2020, 03:02:37 PM
Did you put a new map or tune when you changed the cam?


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Yes have a nap in there. Been running fine without any lights coming on till dealer changed out the rocker box cover on rear cylinder.  Trying to get it somewhere to get it tuned. Everyone that uses the TTS tuner is over 4 hours away.
Title: Re: Check Engine & Temp Light on
Post by: newseultra07 on August 10, 2020, 08:51:46 PM
Well crap. Went for a little ride to see if the check engine & temp lights would come back on. Well after about 16 miles both lights came on again. I pulled over and pulled the cover off the side where coolant tank is & the level was at the cold mark. Sat there and called the dealer back and told them the lights came back on after riding for 16 miles. Of course  they said they would have to diagnose it again to see what codes were. I checked the codes and both the ECM & BCM said P1019. When I stopped I checked to see if the fans were on on coolant tank side I didn't feel any air blowing out of it. So I rode back home & the temp light came back on about 15 miles again. The check engine light never went off. When I got back home and shut it down the fans were blowing cool air out of the vent on coolant tank side. At this point I know there going to say they can't find anything wrong with it again when I take it to them..I may just take to another dealer in town now..

I was also planning to take bike to GMR in Dallas Friday for Steve to tune it since know one in may area can use a TTS tuner. This all started after I got bike from dealer to change the rocker box cover out. Don't know if anything they did would cause these issues.. But its getting frustrating for sure...
Title: Re: Check Engine & Temp Light on
Post by: Twolanerider on August 10, 2020, 10:46:29 PM
Did they purge the system after having it open? 
Title: Re: Check Engine & Temp Light on
Post by: Joel on August 10, 2020, 10:46:48 PM
If you're dealership is anything like the one here. You are better off going to an independent repair shop.
Everytime I go to our local dealership there is a whole new crew.
The owners son isn't even there anymore,  he's selling cars or boats or what ever at a different location.
Our local dealership always says they  see nothing wrong or they all do that.
Title: Re: Check Engine & Temp Light on
Post by: Joel on August 10, 2020, 10:53:49 PM
If after a long ride and you get cool air from the fans it must not be circulating.
Either a air blockage or no circulation whether a water pump or a stuck open thermostat.
Did they unplug the water pump?
Title: Re: Check Engine & Temp Light on
Post by: Phreakyz on August 11, 2020, 05:57:10 AM
Sounds like an air pocket in the cooling system.   They should use a vacuum coolant system filler to get all of the air out.  With all of the pipes and hoses on the bike it can be very difficult to get air out of everything without it.   It can be done without a vacuum filler but takes a long time to burp it all out and I doubt they spent the time to do it right.

https://www.youtube.com/results?search_query=vacuum+coolant+fill
Title: Re: Check Engine & Temp Light on
Post by: grc on August 11, 2020, 09:10:39 AM
Well crap. Went for a little ride to see if the check engine & temp lights would come back on. Well after about 16 miles both lights came on again. I pulled over and pulled the cover off the side where coolant tank is & the level was at the cold mark. Sat there and called the dealer back and told them the lights came back on after riding for 16 miles. Of course  they said they would have to diagnose it again to see what codes were. I checked the codes and both the ECM & BCM said P1019. When I stopped I checked to see if the fans were on on coolant tank side I didn't feel any air blowing out of it. So I rode back home & the temp light came back on about 15 miles again. The check engine light never went off. When I got back home and shut it down the fans were blowing cool air out of the vent on coolant tank side. At this point I know there going to say they can't find anything wrong with it again when I take it to them..I may just take to another dealer in town now..

I was also planning to take bike to GMR in Dallas Friday for Steve to tune it since know one in may area can use a TTS tuner. This all started after I got bike from dealer to change the rocker box cover out. Don't know if anything they did would cause these issues.. But its getting frustrating for sure...

If you have a TTS map installed, the fan operation is changed from stock.  With TTS, one fan comes on at a certain temperature, if the temp increases to a second trigger temperature both fans turn on.  That doesn't affect how the fan and pump test works, just how they work in normal operation.

I have to go back to my first comment in this thread, you had no problem when you took the bike to the shop and you had this problem show up immediately on the ride home from the shop.  The odds are heavily in favor of the shop screwing something up, such as not purging the air properly OR disconnecting or damaging wiring to the pump and/or ETC sensor.

Your various descriptions sound like you aren't getting consistent flow of coolant, thus the cool air from the fan after a ride.  Before wasting time and money on the clueless folks at the dealership, you need to verify if the pump is actually circulating coolant.  You can't always tell just by touching the pump (remove the cover) during the fan test, some pumps have had impeller failures but still ran, others have had other weird failures but still felt like they were running. 

The vast majority of the cases I've read with the P1019 code, once the dealers learned how to purge the air from the system, have been resolved either with a new pump, or a replacement of the ECT sensor which has also had less than stellar reliability. 

Take a look at the attached pdf for basic diagnostics.

Jerry
Title: Re: Check Engine & Temp Light on
Post by: RoadTrip on August 11, 2020, 09:45:15 AM
I had similar problem on my 2015 while on trips. Solved it initially by replacing the fuse for the cooling system. The second time, I had the old style water pump replaced under ESP (the last week of coverage as a matter of fact). No problems since.
Title: Re: Check Engine & Temp Light on
Post by: newseultra07 on August 11, 2020, 12:03:56 PM
I'm taking to a different dealership than one i went to originally. I spoke with them & they seem to think its either the coolant pump or a thermostat not opening. Did say haven't seen many coolant pump failures thou.. Guess will see what they find.
Title: Re: Check Engine & Temp Light on
Post by: newseultra07 on August 12, 2020, 05:59:21 PM
Dealer called and said rode bike and lights came on. Diagnosed to being the ETS. And of course the part is not in stock.  Trying to find part at another dealer. I called the first dealer. 
Title: Re: Check Engine & Temp Light on
Post by: newseultra07 on August 14, 2020, 08:01:50 PM
Dealer called and said bike was all done. Put 75 miles on it to make sure was all good. Said that there was a huge air pocket in the system and probably was the cause of the sensor to burn up. Said there was no fluid on left side of radiator due to air pocket.  I told them to document it all on the ticket & I'm going back to dealer that did the rocker box job & let them know they more than likely caused this problem. I probably know they really don't give a crap either way. I talked to SM at other dealer other day about this & he acted like oh well glad other dealer got it diagnosed...SM said his tech spent a lot of time on it and didn't find anything wrong.. Guess all they did was reset the code & got bike up to temp on lift and called it good...