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My car is runing like a sparkplug is missing but its not an radiator water not flowing

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  • Cars & Trucks Master
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Without knowing what kind of car it is, it might be just a bad spark plug wire, as for the water, it could be a old thermostat, I would suggest that you check to see when the anti freeze was changed, and if the car over heats, then that does tell you a thermostat is bad, only way to tell is to take it out and boil it on stove to see if it does work

Posted on Apr 09, 2015

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  • Cars & Trucks Master
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Hi Henry:
Sounds lke you've two problems that may (or maybe not) be related, so let's try to isolate them and see how it works out.
- First, let's deal with the spark. I'd suggest you remove the sparkplugs. Don't mix them up since you want to look at their condition so you'll know what is going on in each cylinder. By looking at the tip of the plug you can tell if it's firing normally, fouled with oil, Contaminated with carbon, or wet with gas. Replace any bad plugs (best to do them all) and then drive normally until the problem happens again. Then recheck the plugs and you'll have zeroed right in on the problem.
- Radiator - By "not flowing" do you mean that the water pump is not working? The only other thing that would cause the coolant not to flow wold be a stuck closed thermostat, and the engine would overheat if that were the case.
With the engine cold, remove the radiator cap. Fill to the top. Install cap tight. Run until engine is warm and look for leaks.
SAFETY FIRST!!!
DO NOT REMOVE RADIATOR CAP or attempt to adjust any hose connections while engine is HOT.

Posted on Apr 09, 2015

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Posted on Jan 02, 2017

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SOURCE: 1988 BMW 735I RUNING HOT REPLACE THE RADIATOR,

Headgasket must be checked. and check that you have enough radiator fluid. Also check for warped/cracked cylinder head.

Posted on Nov 07, 2009

Coleman37
  • 337 Answers

SOURCE: heater quit working runing hot no water in

Fill it up, run until it's hot and see if you see anything coming out of the water pump. I don't think the heater has anything to do with the running hot problem. The heater valve may need replaced or freed up. Good luck!

Posted on Mar 10, 2010

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