Need to replace the temperature sensor for dash guage (1990 5.8L) Located old sensor and removed wire connector but for the life of me I am not sure how to remove plastic fitting on top of sensor that wire connector snaps into without destroying it???? Looks like that need to come off before I can remove sensor unit from manifold. Any tips? Or do I need to bust it off and get new fitting for sensor unit too?

Thanks for the help!!!

 

I'll bet you're messing with the wrong sensor for starters. The one for the dash gauge is in front of #5 injector on the drivers side lower intake, and it has a single wire pushed on over a stud that sticks out the top of the sensor.

 

Thanks for the tip seems like I am messing with wrong thing. Can I access sensor easily or do I need doll sized hands or tear top of engine off?

thanks

 

Remove the twin air intake hoses and you shouldn't have any problems accessing it.

 

Thanks much! Will swap it out this weekend!

 

I just looked for it again and the only other sensor I could see was right behind the distributor cap with the same plastic clip and two wires leading to it. Looks exactly like the one I was originally messing with just in a different spot. Am I still looking in wrong area??

Thanks !!!!!

 

If I'm not mistaken, that is the IAT sensor. You have gone to far back on the manifold. As Conaski pointed out, it is located right in front of the #5 injector, with a single wire attatched to it.

I've included a pic from my 5.0L manifold. if you look ot the left of the image you can see where stud for the temp sender is sticking out near the thermostat housing. Hope this helps.

 

Thanks, I that helps! I am going to take another look!

 

Found it!! Thanks guys!