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Author Topic: electric water pump?  (Read 2121 times)

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electric water pump?
« on: 19 May 2010, 12:21:19 »
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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Andy B

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Re: electric water pump?
« Reply #1 on: 19 May 2010, 12:23:26 »
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.... seams as the engine takes it  ....

your engine makes the heat  :-?  ;)
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Re: electric water pump?
« Reply #2 on: 19 May 2010, 12:26:11 »
Quote
Quote
.... 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.
« Last Edit: 19 May 2010, 12:26:41 by Russ76 »
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Kevin Wood

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Re: electric water pump?
« Reply #3 on: 19 May 2010, 12:27:04 »
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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Kevin Wood

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Re: electric water pump?
« Reply #4 on: 19 May 2010, 12:28:54 »
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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Re: electric water pump?
« Reply #5 on: 19 May 2010, 12:31:04 »
Quote
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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Re: electric water pump?
« Reply #6 on: 19 May 2010, 20:45:25 »
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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2woody

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Re: electric water pump?
« Reply #7 on: 20 May 2010, 09:03:50 »
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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Re: electric water pump?
« Reply #8 on: 20 May 2010, 10:11:58 »
Quote
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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Kevin Wood

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Re: electric water pump?
« Reply #9 on: 20 May 2010, 10:26:47 »
Quote
Quote
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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Re: electric water pump?
« Reply #10 on: 20 May 2010, 10:29:15 »
Quote
....
Mine only used to run when the engine was stopped and the climate panel was switched on. :-/
 ....

From what I've gleaned here, that only applies to face lift cars. My minifacelift doesn't do it.
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Re: electric water pump?
« Reply #11 on: 20 May 2010, 10:32:03 »
Quote
Quote
....
Mine only used to run when the engine was stopped and the climate panel was switched on. :-/
 ....

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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Re: electric water pump?
« Reply #12 on: 20 May 2010, 10:34:37 »
Quote
Quote
Quote
....
Mine only used to run when the engine was stopped and the climate panel was switched on. :-/
 ....

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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Eighth_dwarf

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Re: electric water pump?
« Reply #13 on: 20 May 2010, 10:41:13 »
mines a mini facelift, and without the pump I get no or very little hot air in the cabin!
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4huftys

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Re: electric water pump?
« Reply #14 on: 20 May 2010, 10:41:31 »
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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