I broke it while changing plugs, bought a new one and installed with minimal coolant loss. Now the gauge jumps from time to time like there is air in there but I've bleed it a couple times via bleeder and left the cap off while running for a bit . Any suggestions? Thanks

 

Sorry to be off topic, but did you have to get it at a dealership? How much did you pay for it?

 

Yes GM. I think it was 18-20$. Don't remember but it wasn't much

 

Thank-you Jeremy!
I too, broke mine during a plug/wire install.

 

Got off track a bit but still need to know how to rid my air pocket. Will it clear out over time while driving?


Will it affect my temp sensor that the pcm reads and cause problems? I dont think its big enough to hurt the water pump or anything but it definatly makes my gauge jump up and down

 

check the tiny pathetic little wire that goes to the gauge. As small as it is it could be real easy to damage it. Sometimes it can take a few times to purge all air out of the system.

 

I am assuming you are talking about the sensor in the head? The pcm reads the sensor in the waterpump, while the sensor in the head is for the gauge....

 

Yeah, I would assume that, since he said he broke it while changing plugs.

 

he said something about the pcm reading incorrect. Just wanted to clarify. I never broke the gauge pulling headers, installing them. Thought I was going to pull the wire out a few times, but......

 

he asked about the air pocket


and yes, if it is a air pocket(probably is) it can effect the ECT for the PCM

just keep trying to bleed it

have you let ity get cold, open the cap and bleeders, then start it ?, close the bleeders when coolant comes out, leave the cap off till thew t-stat opens

 

Thanks, will keep trying

Oh yeah to the guys that don't read well. read it again

maybe I did make it confusing

Yes it was the "coolant temp sending unit" for the gauge.

And when I was talking about the PCM I was meaning the air bubble making its way there..........Thanks again

 

Sometimes it helps when bleeding our cars, to remove the thermostat housing and fill with water first (being extremely careful of the Opti and H20 dont mix issue), put it back on, then re bleed again and again and again. Then bleed it more for a 10 minutes past the time you see no more bubbles. Not being sarcastic either. Next day you still might get your low coolant light.

ZMAN

 

I wasn't air. I was checking the wire and it was fine so for kicks I used a little flat screwdriver to scrape out the connecter and I also bent the prong a bit to insure a connection and has been fine ever since.