Renault Scenic Water problems

I have another one for yous. My sister as a 1998 1.6 Scenic. it has developed a bit of a problem with the cooling system. when it is sitting idlein it blows cold air inside the car, if i rev it to about 2000 rpm the air gets hot. it i loosen of the bleed screw on the heating system, it bubbles out air and the hot air starts to blow inside when idle, if it runs for another 5 mins the air becomes cold again. i have changed the thermostat but that didnt solve the problem. there also seems to be a dirt residue in the water bottle, its not oilly more like gunk from the bottom of the rad. please tell me its not the beginning of a head gasket problem

Thanks

Reply to
pcg.farrell
Loading thread data ...

i did a renault scenic recently, similiar problems, turned out that the vanes on the water pump had fallen off.

Reply to
reg

thanks for that, but i had the water pump off when i was changing de thermostat, as i was checking for leaks, and it is all intact and working.

Reply to
pcg.farrell

Sounds like either the system need bleeding properly or you have a leak in the heater side of things.

Reply to
Malc

Most likely the head gasket then.

Reply to
moray

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.