4L60E Fuse Location

If you have a 4L60E with a blown fuse, we’ll help you find it’s location.  It’s not that hard to get to. This can be the problem that is causing your truck to go into limp mode, since the 4L60E will default to limp mode whenever it’s not getting a signal from the TCM.  Fuses are … Read more

2002 Avalanche Transmission + Problems

The 2002 Chevrolet Avalanche came with two automatic transmissions.  It had no manual transmission option.  The standard transmission for these trucks was the 4L60E.  The heavy duty transmission option was the 4L80E.  They are both four speed overdrive transmissions.  Most of these trucks are going to have the 4L60E since that was the transmission that … Read more

4L60E to 4L80E adapter

When adapting your car from a 4L60e to 4L80e, there are really two parts to the process.  Getting the wiring right is the first part, and the second is making the 4L80E fit in the vehicle.  If you are swapping a 4L80E into a vehicle that has never had one before, we strongly recommend searching … Read more

2002 Trailblazer Transmission

The 2002 Chevrolet Trailblazer is the second model year of the first (and only in the U.S.) of GM’s once popular midsize SUV.  Almost without exception, the transmission that came in these trucks was a 4L60E.  The only exception ever was the Trailblazer SS that would come in later model years.  Now, depending on what … Read more

2006 Trailblazer Transmission

2006 is the first model year for the Chevrolet Trailblazer where every single unit manufactured didn’t come with the 4L60E.  That’s due to the introduction of the Trailblazer SS, which needed a more powerful transmission and got one in the 4L70E.   2006 Trailblazer Transmission Fluid  Capacity The Transmission fluid capacity on a 06 Trailblazer … Read more

2005 Trailblazer Transmission

The 2005 Chevrolet Trailblazer is the 4’th model year for this SUV.  Like the 02-04 Trailblazer’s that came before it, the 05 model comes equipped with the 4L60E transmission regardless of which engine it was equipped with.  Though, there are some unique changes to the 4l60E to accommodate the I6 motor these trucks came with.   … Read more

2004 Trailblazer Transmission

For the most part, but 2004 trailblazer transmission is a carryover from the 2003 trailblazer transmission.  The Trailblazer utilizes the 4L60E transmission in all models.  The 4L60E is very capable in these trucks.  With the trailblazer, it’s more likely that the engine will fail before the transmission does.  The exception to that would be any Trailblazer … Read more

Th400 vs 4L80E Differences

Clearly, the biggest difference between the TH400 vs 4L80E is the 4L80E’s overdrive gear. Although they come from different eras, there is quite a bit that these two transmissions have in common.  The mere fact that people are so interested in this topic is a testament to the absolute bulletproof reputation of the TH400.  There … Read more

Where is the thermostat located?

Traditionally finding the thermostat on a car or truck has been a relatively easy job.  It used to always be right there on top of the intake manifold.  Now, where the thermostat is located is going to depend a heck of a lot on whether the engine is transverse mounted or mounted longitudinally.  A basic … Read more