Aslamoalikum,
My car have one problem that its A.C gets tripped on IDLE only after running 50-60 KM continously.
Like if i drive 20 KM and stay on IDLE, A.C works very well but after a drive of 50KM, when car is IDLE A.C stops working and when I start car again, it take a lot of RPM to acceletate car seems like a.c need more load at that time.
I got a new a.c compressor and condenser last year and also cleaned catalytic. Also, added some space between condenser and radiator through mechanic so that both should not take heat of each other.
The only thing that i never changed is radiator water or coolent (as i never need it), whenever i check radiator water is full since 1 year. Also, never got hot temperature light but cold temperature light comes up at start of engine in morning.
Checked a.c gas recently and it is at optimum level. Also pressure washed compressor and condenser 2 days ago but a.c still trips after car covers 50-60km mileage on sunny day and stopped at signal or idle anywhere.
So my point is i want to try radiator cleaning and I don't want to open bumper because it is fixed with bolts from outside and painted on bolts.
I heard some people do Radiator flush with Pyro or citric acid or liqui molly, saw videos about this but i am not good on doing mechanics myself.
I need suggessions about radiator cleaner who can do this without opening and how much they charge ( for Lahore city only).
Also please suggest if you think this a.c tripping is due to some other problem and solution.