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[Steve Brookman]

Morning all,
Still having slight issues with my Sierra. Started getting hot a bout 8 months ago-replaced water pump, thermostat and foolishly (I think) the HG. On the level the car is fine but when you come to a hill the temp starts to rise-it doesn't overheat but climbs rapidly towrds the Red.
I'm now suspecting a partially blocked radiator-I tried flushing a few months back and it did make a slight difference. The radiator is original and 20 years old.
Any ideas greatly appreciated./

Steve

[ozzycat]

could be the radiator try the holts 2 part flush its worked for me but somr peeps on here may have a better solution

[symes]

take radiator out and stick hose in it and flush it through while rad is placed side ways/upside down -works on rover p6 rads
you can blank other outlet on rad with plastic bag/hose clip if required

[Steve Brookman]

Thanks,
Tried the 2 part flush-will take it out.
The radiator on my P6 was very easy to take out if I remember!
Wish I still had it (P6 3500S).

Thanks
Steve

[symes]

Thanks,
Tried the 2 part flush-will take it out.
The radiator on my P6 was very easy to take out if I remember!
Wish I still had it (P6 3500S).

Thanks
Steve

mine is 1965 2000 with buick 300 in its nose -am doing fron lower ball joint later today right pain to do

[sassanach]

just stick your mitt on the rad when the engine is hot,it should be warm at the bottom and stinking hot at the top.you will NEVER successfully flush a parallel flow rad that has furred up inside.water gives up its limescale at approx 60c, engines run at approx 95c.

[biggriffin]

Go to plumcentre/screwfix and get some fernox flush. Top stuff.

[martin42]

to be fair using a fernox etc could make matters worse,personally if it is orginal,get it refurbed or replacement,will be quickest and easiest option 

[Steve Brookman]

Thanks all,
Will get a new one.

Cheers
Steve

[0795omega]

are you sure it is actually getting hot,i had a 1990 2.0 pinto sapphire thats guage would sore into red,it was a faulty guage in the end nothing wrong with engine!

[Taxi_Driver]

Go to plumcentre/screwfix and get some fernox flush. Top stuff.

Some of that stuff eats aluminium as well as limescale 

[Taxi_Driver]

just stick your mitt on the rad when the engine is hot,it should be warm at the bottom and stinking hot at the top.you will NEVER successfully flush a parallel flow rad that has furred up inside.water gives up its limescale at approx 60c, engines run at approx 95c.

Very true......tho you could use distilled water i guess.....

[sassanach]

i do 

[Sir Tigger KC]

Go to plumcentre/screwfix and get some fernox flush. Top stuff.

Some of that stuff eats aluminium as well as limescale 

I used that on a 20 year old combi-boiler once thinking it would improve the performance.  Not long after the heat exchanger failed and I had to buy a new boiler....   

[05omegav6]

i do 

+1