This small part can cause a lot of headaches if you don't know to look out for it. If the car runs like it has a massive vacuum leak, bad airflow, or mixture problems, check the air box thermostat.
Good video. I was just doing this job on my 240 and I was glad to see you show the before and after and the length of the pin when it sticks out of the brass body. BTW, I also have a Hobie Holder 14.
Is it possible that the pin could be stuck in such a way that the spring wouldn't let the flap close to allow warm air in hence causing a cold start issue? I have brought my car to three shops for a cold start issue and nobody has thought of this as the culprit but I think this might be the problem. I may just hope I haven’t fried the MAF while looking for the answer. One mechanic took it out on a drive and told me to "Rev the engine" to get passed the cold start issue cause then the car ran fine except for poor fuel economy. Ordered the part. I really hope this is my answer.
man i did this without taking the air box out. that was a pain in the ass to get the valve assembly out. I used seegerring/circlip plier. I broke one of the arms on reassembly.
so you would recommend taking out the air box to replace the thermostat rather than taking out the valve assembly while the box is still attached in its normal position?
You showed everthing except pulling the spring down far enough so that the thermostat drops out & installing the new thermostat. I have put my new thermostat into the refrigerator to reduce the length of the pin. Is there a tool that can help pull the spring down far enough so that the old thermostat drops out easily and the new thermostat is easy to replace.
I just pulled the spring unit out lmao. Thermostat falls right off after that. Push spring back in. Pretty simple. Didn’t need pliers to get the assembly out either I just pulled and pushed back in
@@ethixhiggins5059 I have done it on a VW air box. So I am not sure if I can answer your question assuming it is for Volvo. The spring is tough, but I managed to push it back for VW. I first frozen the thermostat to be able to push the shaft in all the way. Which reduced the travel needed for the spring to take position.
