What temperature is too hot for Allison transmission?

Temperatures from 230-240 have been reached with no damage to the transmission. If you are seeing temps above 225 degrees on a regular basis you should check your fluid level. Fluid levels to high may cause excessive temperature.

Is 210 degrees too hot for a transmission?

The ideal operating temperature of transmission fluid is 175 degrees. Overheating occurs after the temperature surpasses 200 degrees, and the failure rate doubles for every additional 20 degree increase after that. Fresh, clean fluid on the other hand, will make it run cooler, shift better, and last longer.

What should the transmission temp be in a Duramax?

If you own a 2001-2004.5 LB7 Duramax your normal operating temperatures will run around 160-180 degrees. These transmissions will warm up when towing or driving in the summer months. 200-225 is very common when the ambient air temp is 80-100 degrees and your transmission is under an increased load.

What should the temp of an Allison Transmission be?

How hot should your Allison transmission run? If you own a 2001-2004.5 LB7 Duramax your normal operating temperatures will run around 160-180 degrees. These transmissions will warm up when towing or driving in the summer months. 200-225 is very common when the ambient air temp is 80-100 degrees and your transmission is under an increased load.

Are there aftermarket Trans coolers that reduce trans temps?

Aftermarket Allison trans coolers are expensive and effective in reducing some trans temps. They must be Allison specific not universal. You may destroy your transmission by using the wrong cooler. Higher capacity or deep sump trans pans will help reduce some trans temps and hold additional fluid.

What should the temperature be in a Duramax LB7?

If you own a 2001-2004 LB7: Duramax your normal operating temperatures will run around 160-180 degrees.

What’s the normal temperature of a LLY transmission?

The 2004.5-2010 LLY, LBZ, & LMM: These transmission will run a higher normal operating temperature than the LB7 models. Normal operating temps will range from 180-200 approx. 100 degrees above ambient air temps. These transmissions will run from 200-230 in the summer months when towing in hilly areas.