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I have a cat 3126 marine engine. When I took the cover off
I have a cat 3126 marine engine. When I took the cover off the injectors, numer three injector push rod was bent and damaged, should I have the injector inspected and tested. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Need torque specs for injector hold down bolt and bolt
Need torque specs for injector hold down bolt and bolt pattern for jakes etc on a injector oring and cup replacement. cat motor serial 1lw31664… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Have 2007 c-13, SN KCB09401. cooling system full of sludge.
Have 2007 c-13, SN KCB09401. cooling system full of gray sludge. I suspect Inj cups, but it doesn't have the smell I am used to when fuel and anti freeze mixes. Psi test cooling system, it holds 15psi… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a 2006 c-15 cat engine that was parked for about an
I have a 2006 c-15 cat engine that was parked for about an year because of fuel in coolant. Replaced injector cups along with orings and fuel injector orings. No more fuel in coolant Road tested and f… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
3126 cat engine - diesel getting in radiator ?? 3126 cat
3126 cat engine - diesel getting in radiator ?? JA: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Equipment Mechanic I'm going to connect you with know… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a 2000 GMC 6500 with a 3126 cat engine. We had a
I have a 2000 GMC 6500 with a 3126 cat engine. We had a radiator leak the other day and put a new radiator in. Since then water has been coming out of the cap at the overflow while driving the truck. … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Have an FL 80 Freightliner with 3126 engine that is
Have an FL 80 Freightliner with 3126 engine that is experiencing intermittently severe power loss. After sitting and cooling off power level return to normal levels only to relapse in an hour or two o… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
My 3406E is getting coolant in the fuel? Would this be the
My 3406E is getting coolant in the fuel? Would this be the injector cups, or a cracked head maybe?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
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
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a 3126 Cat engine. I am getting a lot of fuel in
Hi. I have a 3126 Cat engine. I am getting a lot of fuel in the coolant. Enough that it is pushing fluid out of the over flow. Do these engines have injector cups? Any other ideas on how fuel gets int… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have Detroit s60 it mixed diesel in the oil panel I takes to the sh
I have Detroit s60 it mixed diesel in the oil panel I takes to the shop they removed all 6 injector and they said number 2 is bad they change number2 and the put the rest back in with new o ring start… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Me. Cat Man, Is there anywhere else fuel can leak into the
Me. Cat Man, Is there anywhere else fuel can leak into the cooling system on c15 other than by the injector sleeve orings?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
1999 chevy c6500 kodiak with 3126 serial 7as31663 overheated
1999 chevy c6500 kodiak with 3126 serial 7as31663 overheated engine while driving was trying to make it back to yard eninge shutoff, next day engine started backup found waterpump bad, replaced waterp… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Im looking to purchase a 2000 or 2001 GMC dump truck with
I'm looking to purchase a 2000 or 2001 GMC dump truck with a caterpillar model 3126 230 horsepower engine in it what are some of the downfalls with this motor if any the truck has 36,000 original mile… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
2003 cat 6nz has 130000 miles on total overhaul and I have
2003 cat 6nz has 130000 miles on total overhaul and I have never been able to get it run warm uasually runs round 170 degrees I have changed thermostats to 190 degree and couple days ago it was pullin… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
hi, thanks for the help. there are two of these trucks for
hi, thanks for the help. there are two of these trucks for sale and the second one had the same problem, and ended up haveing deisel in the coolant. they flushed the rad and it did it again, if this w… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
catman,your the best,once again im having issues on the 04
catman,your the best,once again im having issues on the 04 chev c6500 3126 cat. either its bad o-rings on the injectors again or the cups or o-rings below the injectors. i know before you said a bad h… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
c-15 475hp engine Peterbilt 387 02, on uphill one of hoses
c-15 475hp engine Peterbilt 387 02', on uphill one of hoses for sleeper heating bursted, we stopped at the side, I closed all valves for sleeper heating, when i turned on truck oil lamp went on couple… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

3,632 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,965 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

3,400 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

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ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

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cumminsdr

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Chris (aka-Moose)

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dieseldan55

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Road Service mechanic for Volvo Construction.

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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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