Have a 2000 W4500 Isuzu 4 HE1 top speed 65mph is there governor?

It is possible that your 2000 W4500 Isuzu 4 HE1 has a governor, as this was a common feature on many commercial vehicles of that era. However, as with all Isuzu vehicles during this time period, it is possible that your vehicle may not have been equipped with a governor, as it is not a factory standard feature.

To confirm whether or not your vehicle has a governor, you can refer to the owner’s manual or consult with an authorized Isuzu dealer. Additionally, you may be able to determine if your vehicle has a governor by observing its behavior while driving. If the vehicle reaches a certain speed and then seems to be unable to go faster, this may indicate the presence of a governor.

If your vehicle does have a governor, you may be able to disable it by physically disconnecting it or by reprogramming the vehicle’s computer. However, it is important to note that disabling the governor may be illegal in some jurisdictions and could void your vehicle’s warranty.