Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: same #same# on 19 May 2010, 12:21:19
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was wondering if an electric water pump would fix the cold driving in winter, i change water every year and flush out rust etc but when really need it in winter hardly any heat comes out of heater, seams as the engine takes it but when warm its like a hair dryer and burns hands, has no sensors in the vents and is knob type, 95. thanks, if would work were do I put a pump?? thanks :)
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.... seams as the engine takes it ....
your engine makes the heat :-? ;)
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.... seams as the engine takes it ....
your engine makes the heat :-? ;)
i know that but when its cold out side the inside is cold and pipes to rad inside are luke warm and engine pipes are hot. but rest of year all hot.
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Might be worth flushing the cooling system with a chemical flush and flushing the heater matrix by disconnecting the pipes at the bulkhead and reverse flushing with a hose - just in case it's partially blocked.
Some models did have a "winter pack" which included an electric water pump to circulate coolant through the heater but I'm not sure it made much difference except for using "residual heat" to keep the car warm while parked with a warm engine. The engine water pump should be more than up to the job, especially during warmup while the thermostat is closed.
Kevin
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One other thing to check...
Does the engine temperature come up quickly after a cold start? (within a mile or two)
Does the top radiator hose remain cold until the engine is fully warmed up?
Could be that the engine is slow to warm up due to a faulty thermostat.
Kevin
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Might be worth flushing the cooling system with a chemical flush and flushing the heater matrix by disconnecting the pipes at the bulkhead and reverse flushing with a hose - just in case it's partially blocked.
Some models did have a "winter pack" which included an electric water pump to circulate coolant through the heater but I'm not sure it made much difference except for using "residual heat" to keep the car warm while parked with a warm engine. The engine water pump should be more than up to the job, especially during warmup while the thermostat is closed.
Kevin
ive had all pipes off and pressure washed out both ways to get every thing out used rad flush and even garage has tryed there stuff and still the same rads on both are fine just seams to turn off in side rad in winter. :-?
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I would take a look at the thermostat. Do you know if the car has one? is it does i'd replace it. I'm not sure how difficult it is on the 2ltr, but it's got to be easier than on the v6 engine! I used to have a car a few years ago that would flow water through it heater matrix, but was infact 75% blocked. The pressure washer just unblocked the first few easy channels in the core and the rest remained blocked. I ended up taking it apart. It was a Talbot btw! but could still be a similar problem. good luck.
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the heater coolant pump runs all the time when the engine is on.
well at least all three of mine do.
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Might be worth flushing the cooling system with a chemical flush and flushing the heater matrix by disconnecting the pipes at the bulkhead and reverse flushing with a hose - just in case it's partially blocked.
Some models did have a "winter pack" which included an electric water pump to circulate coolant through the heater but I'm not sure it made much difference except for using "residual heat" to keep the car warm while parked with a warm engine. The engine water pump should be more than up to the job, especially during warmup while the thermostat is closed.
Kevin
Mine has this, and when the pump wasn't working (only just fixed) I couldn't get any heat in the cabin. Should run al the time whilst the ignition is on. If you have one, it's located below the expansion tank. Check it's working.
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Might be worth flushing the cooling system with a chemical flush and flushing the heater matrix by disconnecting the pipes at the bulkhead and reverse flushing with a hose - just in case it's partially blocked.
Some models did have a "winter pack" which included an electric water pump to circulate coolant through the heater but I'm not sure it made much difference except for using "residual heat" to keep the car warm while parked with a warm engine. The engine water pump should be more than up to the job, especially during warmup while the thermostat is closed.
Kevin
Mine has this, and when the pump wasn't working (only just fixed) I couldn't get any heat in the cabin. Should run al the time whilst the ignition is on. If you have one, it's located below the expansion tank. Check it's working.
Mine only used to run when the engine was stopped and the climate panel was switched on. :-/
I removed it when I fitted the LPG kit and it hasn't made any noticeable difference.
Kevin
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Mine only used to run when the engine was stopped and the climate panel was switched on. :-/
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From what I've gleaned here, that only applies to face lift cars. My minifacelift doesn't do it.
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Mine only used to run when the engine was stopped and the climate panel was switched on. :-/
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From what I've gleaned here, that only applies to face lift cars. My minifacelift doesn't do it.
Yes, I've heard this before. I guess it must be there to supplement the coolant flow, at least on the PFL. Can't say I've missed it, though, and it is a very weedy pump anyway.
Kevin
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Mine only used to run when the engine was stopped and the climate panel was switched on. :-/
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From what I've gleaned here, that only applies to face lift cars. My minifacelift doesn't do it.
Yes, I've heard this before. I guess it must be there to supplement the coolant flow, at least on the PFL. Can't say I've missed it, though, and it is a very weedy pump anyway.
Kevin
I don't have the pump anyway so haven't a clue what I might be missing ;D ;D
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mines a mini facelift, and without the pump I get no or very little hot air in the cabin!
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On my 2.6 omega the electrical water pump does not run checked it manually by battery and it works, does this work of relay or when ignition is on etc or what any help cheers Dave
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On my 2.6 omega the electrical water pump does not run checked it manually by battery and it works, does this work of relay or when ignition is on etc or what any help cheers Dave
Same as my 3.2. ;)
If you park it up hot, stop the engine, switch on the climate panel by pressing "auto" and then turn up the climate temperature, you should find it comes to life.
Kevin
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Hi have tried that and there is nothing checked with meter no 12v at all
Cheers Dave
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I will get a pump there is some wires there so will see if the are live and were they go, think can get a pump for a £10 if it works will be great if it works this winter stop fingers and feet feeling forzen :)
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Climate control needs to be configured using Tech 2 before it will control the pump. Otherwise it does run all the time IIRC.
Kevin
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sorry to add my tupenorth
I checked my pump mine as never worked well doesnt seem like it works with ign off and auto pressed blower starts up and shows 3.5 volts at wires on secondary pump with ign off shows .009 volts i dont think it gets full power at any time the pies are very hot so water is just circulating round would luv to know if there is summat amiss dont want buy another pump just to find its ok.
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.... seams as the engine takes it ....
your engine makes the heat :-? ;)
i know that but when its cold out side the inside is cold and pipes to rad inside are luke warm and engine pipes are hot. but rest of year all hot.
sounds to me like the Heater bypass valve is plumbed in the wrong way around!
do this ckeck - set the heaters to full heat and start up from cold. If the matrix is getting luke warm then it is not getting hot water flow - you can check this by feeling the heater matrix pipes in the footwell area
now turn the heater controls to max cold setting - if the matrix pipes turn hot then that's your answer
the point is the HBV should divert flow from the matrix when tem controls are set to fully cold.
If at some point in the car's history, the plumbing of the valve has been disturbed or indeed the valve has failed - you could get this problem
IMO the electic water pump is not this issue or solution. my heater works broadly the same whether the electric pump is running or not
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.... seams as the engine takes it ....
your engine makes the heat :-? ;)
i know that but when its cold out side the inside is cold and pipes to rad inside are luke warm and engine pipes are hot. but rest of year all hot.
sounds to me like the Heater bypass valve is plumbed in the wrong way around!
do this ckeck - set the heaters to full heat and start up from cold. If the matrix is getting luke warm then it is not getting hot water flow - you can check this by feeling the heater matrix pipes in the footwell area
now turn the heater controls to max cold setting - if the matrix pipes turn hot then that's your answer
the point is the HBV should divert flow from the matrix when tem controls are set to fully cold.
If at some point in the car's history, the plumbing of the valve has been disturbed or indeed the valve has failed - you could get this problem
IMO the electic water pump is not this issue or solution. my heater works broadly the same whether the electric pump is running or not
hi havechecked and the pipes and matrix is hot, only thing can see is the pipe on the top going in to matrix is 2,1/2 inches higher than the filler bottle?? it has been changed as its got man date 2001.
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I have exactly the same problem with the pump. help is welcome.