What should the temp be on a Chevy Duramax?

It does run right at 180 now without the winter front and 186 with the winter front (temps read with Edge Insight). It does take highway driving to get it warmed up. The higher temp makes a huge difference in heater output. It does take forever to warm up just idling. Mine was running around that temp so I replaced the thermostats.

What causes a Duramax diesel engine to heat up?

When the engine is working hard, the turbocharger is drawing in a ton of air, and the restrictive stock turbo inlet tube can effectively choke the VGT turbocharger causing the compressor outlet temperature to skyrocket, heating up the intercooler, and ultimately raising the temperature of combustion and the coolant temp.

What’s the normal coolant temperature of an engine?

If you are driving slowly or stopped idling the fans keep enough air moving through your radiator to keep your engine cool. Engine cooling fans may engage at one speed or multiple speeds and may kick on anywhere between 180 and 220 degrees.

How many versions of the Duramax diesel engine are there?

All told, there are six different iterations of the Duramax diesel engine: LB7, LLY, LBZ, LMM, LML, and L5P spanning from 2001 to the present day. Each version of the engine has its own issues and quirks, and some are less problematic than others.

What should the operating temp be on a Duramax?

On all of my other vehicles (mostly GM), operating temp is 210, however I cant get the Duramax above 170 (according to the gauge it is 180). I took the reading via my OBDII reader, it is 170-172F.

How long does it take for a Chevy Duramax to warm up?

Mine now takes about 5 miles at highway speeds to come up to full temp. It still won’t warm up a whole lot just idling, but it is much better with the new thermostats and will now put out heat. I got my thermostats at the local parts store in a kit that had both thermostats and the rubber gaskets. Merchant also has them.

What’s the normal operating temperature of a car?

While we don’t have your vehicle specific information, normal operating temperature for most vehicles can range between 190-220 degrees Fahrenheit. Thank you! -BDP

Why is my Chevelle 350 hard to start?

Fuel pump check valve doesn’t maintain pressure in the fuel rail so it boils and then you have to crank excessively to get rid of the vapor before it will start. Bought a 1972 Chevelle 350 a couple years ago. Every time I drove it it wouldn’t restart easily or sometimes not at all unless I waited a while.

Why is my car engine hard to start?

The starter itself may not be cranking correctly due to the heat impacting the relays which drive the mechanisms (this was a common issue in old air cooled VWs, and with how some newer engines are crammed into engine bays similar things can happen).

When do I change the temp on my trailer?

Mine runs the same. The only time the temp gets up is either when pulling a trailer or in the summer with a/c on it will hit 210 Mine was running around that temp so I replaced the thermostats. The low one is 180 I think. It does run right at 180 now without the winter front and 186 with the winter front (temps read with Edge Insight).

What should the running temp of a service truck be?

I have a 2003 2500HD Service truck on a 3500 chassis. 7800 lbs with tools. and it always read lower than 190 or under. New radiator, water pump and it reads 210 consistent running temp now. Something about it having a leak or pressure loss that causes it to read lower than it is?