TPS replacement

[nhproxr]

Need to replace TPS on 350 in my '98 Yukon. How hard of a project? Anything to look out for?

 

Thanks

[bronyaur]

It's pretty simple. I did it on my '95 Suburban. The only thing you have to make sure of is that you set the voltage correctly. As I recall it's a matter of turning it until you reach the correct voltage, then tightening it down. I had a scan tool connected when I did it so I was able to watch the voltage change as I turned it. If you don't have a scan tool, you should be able to back probe the blue wire at the connector using a volt meter. Idle should be around .6 volts, and with the throttle fully open it should be around 4.5 volts. All of this is done with the key "on" and the engine off.