Question about 1995 Chevrolet Lumina

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Flushing my radiator with a kit VS. with out? it seems like the only real difference is that without the kit my manual doesn't say wether or not to do it while car is running. I would think it would remove more gunk if the car were running???

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You do it with the car running and take out the thermostat flush the system then put in a new thermostat

Posted on Jan 02, 2009

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How to back flush heater core 2007 grand prix


drain coolant system locate heater cores hoses going through firewall you need to buy the radiator flush kit at any auto parts stores. remove heater cores hoses from one end or buy extra long heater hoses same size as heater core hoses in vechicle at auto parts store use the flush kit when you flush through one of the heater core hoses let the other hose drain in a drain pan when you use home garden hose use low water pressure dont use garden hose to the max or you will rupture heater core. your best bet let radiator shop flush whole coolant system. because heater cores hoses are in a tight spot.make sure engine off if you just going to flush out heater core only .after flushing heater core good time to replace heater core hoses.if job too hard or complicated let radiator shop flush out radiator the engine block and heater core because if radiator stopped up or engine block stopped up the gunk and rust will reenter plug up heater core.if you tight on money you can flush out your own radiator.drain out radiator using large drain pan. remove top radiator hose and remove bottom radiator hoses connect to water pump.use garden hose with flush kit part with water pressure not too high put garden hose to top radiator hose run water until clear water run out bottom radiator hose in drain pan,the flush out engine block remove thermostat.if you had another spare thermostat housing with RTV SILICONE SEALANT THAT HAS SET UP INSTALL THERMOSTAT HOUSING BACK TO ENGINE WITHOUT THERMOSTAT FLUSH OUT THE ENGINE BLOCK, WHEN DONE INSTALL NEW THERMOSTAT THEN INSTALL ORIGINAL THERMOSTAT HOUSING WITH NEW ORING WHICH YOU BUY AT DEALERSHIP.IF ALL SOUND COMPLICATED LET RADIATOR SHOP FLUSH OUT COOLANT SYSTEM.

Nov 27, 2012 | 2003 Pontiac Grand Prix

1 Answer

2002 E350 still overheating? New Thermostat, and new spark plugs. Drained & Flushed cooling system - radiator not blocked. No leak from water pump. Catalytic converter became red hot once while reving...


With the vehicle cool, remove the radiator cap, and manually pump the lower radiator hose until all the air is out of the system. That is how you get the air out of the system. If it is still overheating from there then you should check the fan to make sure that it is working correctly.

Jun 07, 2011 | 2002 Ford E350

1 Answer

I have replaced the thermostat and checked all pipes for leaks. None, yet it over heats after about 20 miles


Have you tried flushing the radiator and cleaning the external airflow passages? Is your fan operating properly? Most auto stores sell a flush kit that you can use to hook up your garden hose that does a real good job flushing the radiator.

Apr 19, 2011 | Kia Sedona Cars & Trucks

1 Answer

Im trying to flush my radiator on my 99 pontiac grand am and when I turn the petcock nothing comes out. Does that mean my radiator is completely empty, or should I take the lower hose off, or run water...


yup it might be m/t.or the petcock is ruined.i've seen that happen.someone turns it the wrong way and its stripped or it was seized and when you try to turn it it breaks.just get a flush and fill kit from the parts store and you can flush your rrad real easy

Nov 20, 2010 | 2001 Pontiac Grand Am SE

1 Answer

Can you use a prestone flush and fill kit without opening the radiator drain **** or removing hoses?


No, the flush kit is mounted on the heater hose and you need to drain the system. Removing the lower radiator hose and termostat is the best method for flushing draining the coolant system.

Nov 11, 2010 | 1996 Ford Taurus

1 Answer

My car is running hot do u think i need to change the motor?


buy a radiator flush kit, some prestone flush additive, and even maybe a new thermostat, and a simple haynes manual for your auto. The manual will tell you where and how to change the thermostat, and how to drain the radiator, and how much radiator fluid you will need. The flush kit will instruct you where to put the flush fitting.
Remove the thermo, flush the motor, install new thermo and gasket. Add radiator fluid, done. This should solve your over heating probs. Don't let it over heat! You can cause major probs then.

You could always take it to a shop and pay the $200 to do it for you. My way would cost you less than $50.

please click yes if this helps. thanks

Jan 22, 2010 | 1999 Mercury Cougar

1 Answer

I put stop leak in radiator and now the car blows cold air vs hot air when running the heater. why?


The stop leak have restricted the coolant flow to your heater core. You can try flushing out the Stop leak with Preston Radiator flush or replace the heater core. Once Cooling system flushed out, replace thermostat, radiator cap and repair coolant leak. Good luck and hope this helps, and Note: Common Black kitchen Pepper does great as a radiator stop leak without leaving any residue and can be cleaned out of the system with water and not coolant flush. Two table spoon is more then enough to stop a small leak. Good luck and keep me posted friend.

Jan 11, 2010 | 2000 Buick LeSabre

1 Answer

Flush and fill radiator. how do I drain the radiator to flush and fill the coolant. I seem to be having trouble to find the plug enabling me to drain the coolant.


ther is not one/get flush and fill kit from advance auto parts /it comes with info on how to/10 bucks+coolent.
tim

Dec 12, 2009 | 1999 Chevrolet Blazer

1 Answer

Overheating


Well, assuming that the water pump is turning the correct way, looks like you are going to have to pull the radiator out & take it to a guy who cleans radiator interiors. Seems to me that you may have some sediment built up and the water is not circulating thru the rad. This would explain why the top is warm & the bottom cool with no thermostat. Whilst the rad is out, flush the block with water. See what comes out. Don't use a "flush kit" just yet. In my experience, the flush kits that you buy are not good for this issue, have it done by a pro, but, after he cleans it, then get a flush kit & flush the block anyway. If there is sediment in the radiator (from sitting), there is def sediment in the block.

The timing would have to be WAY OFF to make it overheat.

Sep 17, 2008 | 1984 Jeep CJ7

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