Medium and Heavy Trucks

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I have a 2015 paccar MX13 in my peterbilt I start off with
I have a 2015 paccar MX13 in my peterbilt I start off with the coolant level full I drive it say 100 miles are so the coolant level goes down to almost empty. I check the reservoir its very low I open… read more
Curtis B.
Curtis B.
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2005 hino 268, over heating, new water pump new thermostat,
2005 hino 268 , over heating , new water pump new thermostat , new fan clutch , new radiator , how can I tell if it's egr or cracked head or blown head gasket ? Sometimes over heats in idle sometimes … read more
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C15 Acert motor building pressure in the cooling system. I
C15 Acert motor building pressure in the cooling system. I am aware that the diverter valve going bad can cause this issue. I am wondering what the diverter valve uses for pressure behind the diaphram… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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08 Cummins ISX 386 peterbilt. Is overheating when it pulls a
08 Cummins ISX 386 peterbilt. Is overheating when it pulls a grade and engine shuts down … read more
Andy
Andy
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Vocational, Technical or Trade School
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I have a c15 acert pushing coolant out the overflow hose and
I have a c15 acert pushing coolant out the overflow hose and aso the through the precooler i replace the precooler with a new one and its still doing the same and truck runs cold no more then 180 it a… read more
Cat Man
Cat Man
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I have an 08 Volvo with an isx that is going through a
I have an 08 Volvo with an isx that is going through a gallon of coolent every 60 mi can't see anything going out the stack EGR cooler is blocked off dpf is deleted. There is coolent vapor in the cran… read more
cumminsdr
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I have a 2007 cat C7 that when it idled for a while, the
I have a 2007 cat C7 that when it idled for a while, the temp drops to 150° and the cab heater goes cold. The engine fan comes on and when I rev it up, the temp goes right up to normal and the fan goe… read more
Cat Man
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Cat c15 using coolant and pressure in the overflow
cat c15 using coolant and pressure in the overflow tank.Dealer says could be bad injector cups,wants to change them,doesnt appear to have coolant in the fuel??? … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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My 07 peterbilt pushing water out of the over flow tube
my 07 peterbilt pushing water out of the over flow tube truck has 953000 miles uses no oil good power what could it be… read more
Cat Man
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I had radiator fluid coming out of my radiator pressure cap
I had radiator fluid coming out of my radiator pressure cap I was told that it could either be the air compressor or the head gasketI tested the engine for the head gasket and air compressor I tested … read more
Cat Man
Cat Man
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I have a c-13 in a 2006 freigtliner. It is pushing coolant
I have a c-13 in a 2006 freigtliner. It is pushing coolant out of the overflow bottle, not overheating. I wonder if the air compressor head gasket could be leaking? I also loose air pressure slowly wh… read more
Cat Man
Cat Man
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I have a 2007 Peterbilt 379 with a C15 engine that is losing
I have a 2007 Peterbilt 379 with a C15 engine that is losing a lot of antifreeze but does not have any visible leaks other than the drain tube from the reservoir. It is building high pressure, but is … read more
Cat Man
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2007 Volvo VNL with VED16 engine, coolant system problems,
2007 Volvo VNL with VED16 engine, coolant system problems, unit seems to be building to much pressure in coolant system. About one month ago customer had coolant feed line to to air compressor blow ou… read more
Daniel Wilson
Daniel Wilson
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2003 vt365……no heat, bubbles out of coolant expansion tank….does
2003 vt365……no heat, bubbles out of coolant expansion tank….does not use coolant but gauge shows overheating …?… read more
Andy
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i have a c15 acert (2006 Pete) that has had 3 precoolers (leaking cool
i have a c15 acert (2006 Pete) that has had 3 precoolers (leaking coolant into charge air)go bad in a 6 month time frame, no noticeable combustion pressure in cooling system. Possible causes?… read more
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I have a 2005 8500 ih with a ht 570 does not come up to temp
I have a 2005 8500 ih with a ht 570 does not come up to temp driving slow 50 mph but heats up to 210 at freeway speed fan comes on temp goes down and slowly climbs back. At idle temp gauge never comes… read more
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Andy
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I have an International Prostar 2010 truck with cummins ISX.
I have an International Prostar 2010 truck with cummins ISX. When engine warms up, the coolant fluid in the tank starts bubbling like in a jacuzzi and it's not even hot. High pressure builds up in the… read more
Curtis B.
Curtis B.
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Associate Degree
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catman I have an 08 cat c15 eng sn sdp04125. It is building
catman I have an 08 cat c15 eng sn sdp04125. It is building pressure in the coolant. We thought it had a leak but I just looked at it and it appears to be flowing from the cap. the engine was cool lik… read more
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Cat Man
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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Owner at DJ Wilson

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I am ASE Master Truck Certified.

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worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

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Curtis B.

Curtis B.

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Chris (aka-Moose)

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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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