If you are new to the forum, please ask what to search for.
With the proper member name or part name to search for, almost any topic you can think of has been covered many times.
The hard part is sorting through the mass of posts.
Here is a good thread to read, before you post your question.
Use the Search

Anyone with suggestions or advice, please speak up.

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ASE Master Mechanic
https://whunter.carrd.co/

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
2003 Volvo V70

https://www.boldegoist.com/