When driving the truck just decelerates. I have to pull over and turn off the engine. after a minute or two I can turn it back on and off we go. This problems happens every few days
What kind of truck and what type of fuel gas or desiel? It almost sounds as if the computer is causing a fatal error and going into an shut down cycle. Some newer vehicles are setup to protect themselves when this happens. Helps prevent major damage to the engine. Is it over heating, if not maybe check that the temp gauge is working correctly. By shutting it off and then restarting you are in fact reseting the computer.
SOURCE: My engine stalls out when running air conditioner
Sounds like your air coditioner compressor is seizing up robing your motor of power.
SOURCE: 2003 GMC Sierra 5.3L (has
CODE PO120 - TP SENSOR 1 SIGNAL RANGE PERFORMANCE. CODE P1516 - TAC MODULE THROTTLE ACTUATOR POSITION PERFORMANCE. CODE P2135 - THROTTLE POSITION SENSOR 1 - 2 CORRELATION ERROR. THIS IS A DEALERSHIP FIX YOU HAVE PROBLEMS OR FAULTS IN THE THROTTLE POSITION SENSOR.
SOURCE: I have a 2004 Buick
Sounds like air suspension bag leaking. (bag instead of spring) You can convert the car over to springs again, which are much cheaper then bags, but it will not have the load leveling capabilites that it used to have. The bags cost my local repair shop $168 EACH to buy (at his discounted price from the dealer.) It literally takes about 12 minutes to change the bags on each side! It is weird to look at them when you get it off. You will find dryrot cracks which when full inflated they seem to stop leaking. But the next morning, after a cold evening, the rear end will be all the way down.
I found it destroys the rear shock if driven very far when this condition occurs. I ONLY changed my rear shock to the KYB Gas Adjust, which the auto parts store will tell you they are not applicable to your car, but if you call KYB they will give the part number too you. However, I REGRET not having changed my front struts to the same spec KYB upgraded struts to match the rear upgrade.
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