DEWFPO
Veteran Member
- Joined
- Jun 2, 2007
- Messages
- 1,100
- Location
- "Up High in the Rockies"
- Tractor
- 2009 Bobcat Toolcat 5600 D
I need help diagnosing a power issue on my 2009 Toolcat 5600D.
I know my way around gas engines pretty darn well and I've owned 2 diesel engines but have only done basic maintenance on the diesels so I am literally a novice when it comes to diagnosing diesel engine issues.
I apologize in advance for this being a long explanation but I wanted to give enough information.
- 5600D built in 2008, I am the original owner.
- unit only has 178 hours
- Engine oil and filters have been changed several times over the years. OE Bobcat filter and Amsoil diesel oil 5W30.
- hydraulic filters were changed at 50 hrs. with Bobcat OE filters but it still has the original fluid
- original fuel filter
- I purchase all my off-road fuel from the reliable local CO-OP, I use diesel fuel stabilizer since I don't use much fuel.
- the fuel in it is from last winter season but I've used it several times in the last 2 months with no issues.
- last used about 10 days ago to move yards of top soil around with the bucket
- today I used it to blow wet, heavy snow for the first time this season.
- Hi-Flow light is on with the SB200 attached.
- ambient temp 11F, Toolcat was in a barn that was 37F inside.
- engine starts fine and idles smoothly, I let the Toolcat warm up until the temp gauge is in the green and then I begin to snowblow.
- blowing heavy, compacted snow downhill at medium rpm presents no problems, but then.....
- at higher rpm, especially under load (driving back uphill) it starts to lose power rapidly and starts to blow clear BLUE smoke (not opaque heavy blue smoke) from the exhaust. Not much black smoke to speak of.
- With no snowblower rotation and just driving the Toolcat up a 150 foot, paved, 12% grade driveway it almost doesn't make it to the top. It is literally barely crawling when I get to the top flat area.
- when the engine's blowing blue smoke it's also running rough, and won't run above 2200 rpm in neutral, if I idle down, the smoke slows and stops but it idles down to 1200 rpm and is still running rough.
- if I bring the idle up to about 1600 for a few seconds, it will smooth out and I can then bring it down to a normal smooth idle with no smoke.
- when it's idling smoothly without load, I can run it up to 2900 rpm (normal top rpm), but after only a few seconds it will start running rough, start blowing clear blue smoke, and drop down to the 2200 rpm pretty quickly.
- I turned the engine off in case it was some sort of electronic control glitch but it did not solve the issue.
- I used the Toolcat for about an hour blowing snow on flat terrain and the problem seemed to get worse the longer I used it. Barely making it up the hill the last time.
-There are no warning lights.
- My first thought was it might be a plugged fuel filter but I'm stumped why it would be blowing blue smoke. I've got a Bobcat OE fuel filter sitting on the shelf.
I appreciate any help.
DEWFPO
I know my way around gas engines pretty darn well and I've owned 2 diesel engines but have only done basic maintenance on the diesels so I am literally a novice when it comes to diagnosing diesel engine issues.
I apologize in advance for this being a long explanation but I wanted to give enough information.
- 5600D built in 2008, I am the original owner.
- unit only has 178 hours
- Engine oil and filters have been changed several times over the years. OE Bobcat filter and Amsoil diesel oil 5W30.
- hydraulic filters were changed at 50 hrs. with Bobcat OE filters but it still has the original fluid
- original fuel filter
- I purchase all my off-road fuel from the reliable local CO-OP, I use diesel fuel stabilizer since I don't use much fuel.
- the fuel in it is from last winter season but I've used it several times in the last 2 months with no issues.
- last used about 10 days ago to move yards of top soil around with the bucket
- today I used it to blow wet, heavy snow for the first time this season.
- Hi-Flow light is on with the SB200 attached.
- ambient temp 11F, Toolcat was in a barn that was 37F inside.
- engine starts fine and idles smoothly, I let the Toolcat warm up until the temp gauge is in the green and then I begin to snowblow.
- blowing heavy, compacted snow downhill at medium rpm presents no problems, but then.....
- at higher rpm, especially under load (driving back uphill) it starts to lose power rapidly and starts to blow clear BLUE smoke (not opaque heavy blue smoke) from the exhaust. Not much black smoke to speak of.
- With no snowblower rotation and just driving the Toolcat up a 150 foot, paved, 12% grade driveway it almost doesn't make it to the top. It is literally barely crawling when I get to the top flat area.
- when the engine's blowing blue smoke it's also running rough, and won't run above 2200 rpm in neutral, if I idle down, the smoke slows and stops but it idles down to 1200 rpm and is still running rough.
- if I bring the idle up to about 1600 for a few seconds, it will smooth out and I can then bring it down to a normal smooth idle with no smoke.
- when it's idling smoothly without load, I can run it up to 2900 rpm (normal top rpm), but after only a few seconds it will start running rough, start blowing clear blue smoke, and drop down to the 2200 rpm pretty quickly.
- I turned the engine off in case it was some sort of electronic control glitch but it did not solve the issue.
- I used the Toolcat for about an hour blowing snow on flat terrain and the problem seemed to get worse the longer I used it. Barely making it up the hill the last time.
-There are no warning lights.
- My first thought was it might be a plugged fuel filter but I'm stumped why it would be blowing blue smoke. I've got a Bobcat OE fuel filter sitting on the shelf.
I appreciate any help.
DEWFPO
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