r/Isuzu

This thermal vacuum check valve shuts off vacuum to my fuel pressure regulator and other vacuum lines when my engine is warm. ( There’s vacuum when the engine is cool) When I look up thermal check valve, all I get is the bigger one that’s by the valve cover.

Anyone familiar with these symptoms? Is this normal behavior? Is this a common failure in the unit or is it receiving a signal it shouldn’t? Any help is appreciated.

1982 Isuzu. Looks clean enough for a 44 year old vehicle. Just looking for something I can maybe make a parts getter. From what I understand it should be in the 30-40 mpg range. Diesel 5 speed manual. Been sitting for quite a few years but pretty sure i can make it an around town car with some TLC

well, I’m on here trying to get advice but apparently by doing that I’m breaking rules and they don’t wanna post this so I don’t know how to ask questions without breaking rules, so I’m just gonna post these pictures and I am hoping somebody will end up posting a comment that is relevant to what I’m struggling over 😂

Seen twice in the same day.

Strange looking car. Don’t know the model.

Does anyone have a diagram or know which pins go to what on the ecu? I’ve been having starting and idling issues and I’m pretty certain it’s a sensor/ electrical issue at this point. I’ve replaced almost every sensor under the hood with no avail. I’ve also tried 3 different ecus so I know that’s not the issue. I want to test the wiring and was hoping I could just test it all from the ecu harness.

Thought i’d give Reddit a try as I been putting off replacing this for a while and can’t seem to locate my manual.

Decided to makeshift a hook with a string after I went to pick n pull and was unsuccessful in prying plastic hooks off with my fingers after unscrewing.

Is it as easy as it looks to replace if I come back with my prying tool to swap out my broken one? Any help is appreciated!

2004 Isuzu Rodeo 3.2L