Micra cooling
#1
Scooby Regular
Thread Starter
iTrader: (1)
Join Date: Feb 2001
Location: DBM MY99 UK -New Forest
Posts: 537
Likes: 0
Received 0 Likes
on
0 Posts
Micra cooling
Have been servicing my Mother-in-law's h-reg Micra today in order to gain brownie points so i can spend more dosh on the scoob. Decided to change the coolant but only managed to drain off about a litre from the bottom of the radiator. When i came to refill i could only get in about the same. I ran the engine to get it up to temperature and it was very slow to do so and i noticed the heater didn't work either. What does this mean? Would a seized water-pump stop the heater working and block off part of the system? I would of thought being low on coolant would cause it to run hot not cold. Checked all relevant fuses.
Hoping SN will come to the rescue again.
PeteS
PS Is a non-functioning heater and a very reluctant temp gauge a problem MOT-wise?
Hoping SN will come to the rescue again.
PeteS
PS Is a non-functioning heater and a very reluctant temp gauge a problem MOT-wise?
#4
Scooby Regular
Join Date: Apr 2003
Location: South Bucks
Posts: 3,213
Likes: 0
Received 0 Likes
on
0 Posts
Well I don't know about Micras.
It could be a knackered thermostat or a major airlock. Have you checked to see if you could get more water into the system with the engine running? Also, did you find all of the air-bleed points... Assuming it has them?
If it is roadworthy, I'd take it for a short spin up a nearby hill. (Take coolant with you just in case). Just running the engine on idle in the driveway will take ages to get up to temperature.
Try squeezing the top coolant hose and see if bubbles apear.
J.
It could be a knackered thermostat or a major airlock. Have you checked to see if you could get more water into the system with the engine running? Also, did you find all of the air-bleed points... Assuming it has them?
If it is roadworthy, I'd take it for a short spin up a nearby hill. (Take coolant with you just in case). Just running the engine on idle in the driveway will take ages to get up to temperature.
Try squeezing the top coolant hose and see if bubbles apear.
J.
#5
Scooby Regular
Join Date: Oct 2005
Location: Swansea
Posts: 643
Likes: 0
Received 0 Likes
on
0 Posts
try taking it for a short run, then check to see if top and bottom hoses on the rad are hot. if not then u might have a blockage/airlock. im assuming the water pump is driven from a belt someware on the engine, check if the belts tight. if the pump has ceized then im sure ud know, screeching etc unless the belt is slack.test the thermostat, plonk it in a pot of boiling water to see if it opens and closes. when u drained the rad did u have the lid off the expansion tank/Rad?
Rich
Rich
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Bazil_SW
Engine Management and ECU Remapping
24
21 September 2015 11:55 PM