Vehicle & Technical > Discovery
V8 left hand bank
disco-v8:
yep i did chance all the core plugs but didnt let any slip in, used a slide hammer....
RRB youve made me think abit with your last comment..... if the engine was too hot the air con fans would be always on..... and im sure they are not.... but i thought that in front of the inlet manifold where the thermastate is, there is a thermostat switch, and i thought this was an emergancy switch for the air con fans if it got too hot!!!!! or is it for something else.....
i still think ive got a problem with heat.... i recon that the engine is trying to over heat but the cooling system is doing its job and stopping it from happening, but i think it shouldnt have to try this hard to cool it
if i havent got an over heating problem why does my engine struggle to start and idles iratic when the engine is hot????
Range Rover Blues:
Ok, if you have airconn then the temp switch in the thermostat elbw will switch the fans on if the engine is running too hot, check that this switch is working though. It's needed becasue of the extra restriction that the air conn radiator creates. When the air conn is on the fans will run constantly.
In addition the engine ECU can turn the fans on, if when parked up the engine temp exceeds a preset temp, or the fuel goes above something like 60 deg in the fuel rail, then the fans will come on.
Here's a thought then, how good is your vicoous fan? do you hear it whoosing when you first start up? does it start whooshing again when the engine is getting hot?
disco-v8:
--- Quote from: "disco-v8" ---well agies ago my viscus packed up and stopped working properly, so me the cheap skate that i am and wanting an instant fix, i put a bolt straight through it, as you can emagine this didnt help MPG and sounded like a jet engine when rev'd, but kept the engine cool....
--- End quote ---
kind of already state my viscus in my post.....
but even with the viscus super cooling my engine it does that dodgy start and idle when hot????? think this my be another problem im having but i dont know
Range Rover Blues:
Dodgy idle when hot could be a sensor :?
disco-v8:
yeah when i start it from cold it takes abou 1.5 to 2 turns and it kicks in straight away....
when its been driven and engine is warm it start on the flick of the key...
but when its hot after a hard day off roading or very long journey, it struggles to start, and usualy when its cold/warm the revs jump to about 1200 RPM then the stepper motor dropps that straight awat to about 750RPM.... but when hot and finaly starts it jumps to about 800/850 and sometimes revs up on down abit and nearly stalls, some times it does stall
so what sort of sensors would cause all this????
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version