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Does this cost money? 2013 mack mru with mp7 motor. I
I started the truck a few days ago and noticed a lot of white smoke coming from the exhaust. Took off exhaust pipe at the turbo and started it it up again. Coolant and white smoke came pouring out. I shut the truck off and checked the dipstick. It was very full and very milky so coolant is getting into the engine. I dropped the oil pan and pressurized the coolant system and noticed coolant coming out of the 5th cylinder. I noticed dripping from the inside of the piston sleeve. It came down the piston and dripped off the wrist pin. It looked like the sleeve was fine with no visible cracks. I took the exhaust manifold off and looked into the exhaust port of the 5th cylinder, It was full of coolant. I noticed a tiny bit of what looks like maybe copper in the exhaust port. My guess is either a blown head gasket, or maybe an injector cup? I know the injector cups are copper. I personally drive this truck every day and I know for a fact it never even got close to overheating. Even with coolant coming out of the turbo it started right up and idled normally. After letting the truck sit overnight i tried to start it one more time to get a quick video but the motor was locked due to the cylinder being full of coolant i assume. I didn't keep trying to crank it out of fear of breaking something. So has anyone had this issue? Would you say an injector cup? blown head gasket? cracked head? The only Check Engine Light Code that came on was low coolant in the reservoir. … read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
325 satisfied customers
1995 International 4900 DT 466 Vin# ***************** It has
1995 International 4900 DT 466 Vin# ***** It has a lot of coolant in the oil. It's almost half way up the stick so that's probably about 4 gallons too much on the stick. I pressurized the coolant syst… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
10,726 satisfied customers
C15 Cat in a 4900 Western Star losing 2to3 gallons coolant
C15 Cat in a 4900 Western Star losing 2to3 gallons coolant per day. No visible leaks, exhaust not white,not skipping,not blowing out overflow. Help me.… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
10,726 satisfied customers
Oil in radiator on a Int. Navistar 1991. Oil cooler? 4700Lp.
Oil in radiator on a Int. Navistar 1991. Oil cooler? … read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
325 satisfied customers
Isx. 12 cascadia isx15. Trying to find the issue, smoke
trying to find the issue, smoke coming from oil filler … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
10,726 satisfied customers
Have a question on an international dt466. 1999 3800 school
1999 3800 school bus engine. dont have serial handy … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,413 satisfied customers
Oil in antifreeze Detroit 60s 14l 1.1millon miles replaced
second opinion] Oil in antifreeze Detroit 60s 14l 1.1millon miles replaced oil cooler still getting oil in antifreeze 07 freightliner … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
10,726 satisfied customers
I have a 2011 Kenworth with Cummins ISX engine in it. In
I have a 2011 Kenworth with Cummins ISX engine in it. In August 2016, head gasket blew and we had it replaced. Truck worked fine up until about a few weeks ago. We noticed the engine was burning oil a… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,629 satisfied customers
1999 7AS 3126 Cat engine in a C6500 tow truck. The engine
1999 7AS 3126 Cat engine in a C6500 tow truck. The engine runs excellent with no symptoms other than massive amounts of engine oil being pumped into the cooling system. The oil looks to be mixing unde… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,171 satisfied customers
I have coolant blowing out my radiator cap. I've checked to
I have coolant blowing out my radiator cap. I've checked to make sure pump is working by the line going to top of reservoir. I put Blowby tube in bottle of water to see if it blew air and it did even … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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How do I test my compressor on my Mack e7 427 to see if
How do I test my compressor on my Mack e7 427 to see if it's bad. My egr cooler was bad but I'm still puking water out of the reservoir after replacing it and the filter. Or is there anything else tha… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
10,726 satisfied customers
This question is, VIN#:1FUJGHDV8ALAU1136 The above truck has
This question is for Buddy, VIN#:1FUJGHDV8ALAU1136 The above truck has sign of oil in the radiator, and oil pressure shows low. The oil coolant and oil pressure sensor changed and the sign of oil in t… read more
Expert
Expert
7,100 satisfied customers
I have a 2003 International with a cummins engine # 14040812
I have a 2003 International with a cummins engine # ***** vin#2HSCBAPR93C062714 HAS CODE P0482. And is also losing coolant. I noticed a small amount of oil on the reservoir cap and coolant vapor comin… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,629 satisfied customers
i replace the injector cups on my 1998 international 466e it
i replace the injector cups on my 1998 international 466e it ran great for two day then i check the oil an found water in oil any ideals… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
Working on a 2000 dt466e. Coolant is mixing with the oil In
Working on a 2000 dt466e. Coolant is mixing with the oil In the crankcase.It has a new oil cooler. It does not overheat. It is not smoking nor missing. I removed the oil pan pressurized the cooling sy… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
Have a 2007 model international 9200 with a Cummins ISx. Getting
Have a 2007 model international 9200 with a Cummins ISx. Getting coolant dripping out of the blow by (crankcase ventilation) pipe. Just replaced the oil cooler and air compressor and dont know if eith… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,629 satisfied customers
Hello. I have an 06 Sterling with a Series 60 Detroit (model
Hello. I have an '06 Sterling with a Series 60 Detroit (model # XXXXX and serial #06R083947). It ran a short run of 55 miles yesterday, adding a small amount of coolant to the overflow reservoir mount… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,171 satisfied customers
I have a 6.6 litter 1 ton dually Silverado truck[2002]. My
I have a 6.6 litter 1 ton dually Silverado truck[2002]. My problem is I've had bad injectors for awhile butrecently developed a water leak from the weep hole on the water pump. I overheated the engine… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,413 satisfied customers
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Daniel Wilson

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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