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Coolant presure high heater remains cold

Done headgasket new piston high coolant presure not heater is it air lock how do i overcome

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Sounds like a few things it could be; A; is the water pump working properly, B: is the thermostat working properly (does the car come up to operating temperature around 195 degrees and remain there) C: is there any chance that maybe you are low on coolant/antifreeze, check both radiator and overflow container. D: Last of all is there any chance you may have installed the wrong head gasket or had it up side down? (if all else checks out i would assume that this is your problem.) NEED TO ASK YOURSELF WHAT CAUSED THE HEAD GASKET TO GO IN THE FIRST PLACE, BECAUSE IF YOU DON'T RESOLVE THAT ISSUE THAN IT WILL ONLY BE A MATTER OF TIME BEFORE IT HAPPENS AGAIN. Hope this helps

Posted on Nov 27, 2014

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  • 68 Answers

Chris if ur heater remains cold if u full blast the fan then u need to back wash the heater core u have a blockage on the line do this before deciding to change the heater core it might save u money and time

Posted on Nov 27, 2014

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Maybe it's your thermostat. Take it out and put it boiling hot water and see if it opens or not.

Posted on Nov 27, 2014

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 93 ford festiva heater only blows cold air.

The heater only blows HOT air when set on defrost or floor settings. If you have the lever set for vent, only cold air will come out. Check to make sure you set the controls to floor or defrost. This is standard for all Festiva's.

Posted on Nov 16, 2008

  • 11 Answers

SOURCE: heater blowing cold air with coolant, fine with plain water

it sounds like the heater core is clogged bad if u know someone with a air compressor put a air nossel on it that you pull the trigger to blos air in to the heater core after you take the lines off i had to do this before on a jeep cherokee it did the job

Posted on Jan 11, 2009

  • 6 Answers

SOURCE: heap of white smoke on startup but not always

White smoke usually occurs when there is not enough heat to burn the fuel. The unburned fuel particles go out the tailpipe and typically produce a rich fuel smell. It's not unusual to see white smoke in the exhaust during cold weather until the engine warms up.

Faulty glow plugs or control module can cause white smoke on engine start up.

Low engine cranking speed may also produce white smoke.

If white smoke is still visible after the engine has warmed up, the engine may have one or more bad injectors, retarded injection timing or a worn injection pump.

Low compression or air in the fuel system can also be a source of white smoke.

Posted on May 20, 2009

  • 401 Answers

SOURCE: 2006 Pontiac Torrent heater blowing cold air

hi
check the heater hoses and if both are hot then the mode door is broken
i have replaced 2 in the torrents(not a nice job)

Posted on Jun 21, 2009

  • 2 Answers

SOURCE: heater blows cold air. I have replaced thermostat,

Not an expert by any means, but i know my ranger.. I had a small leak at the top of my radiator that still cooled the engine but didnt have enough pressure to get to the heater. The heater hoses travel up over the engine and just were not gettin anything to my heater core. That or make sure the heater control valve is operating.

Posted on Apr 16, 2010

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1 Answer

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1. coolant leak (level too low to fill heater core)
2. headgasket leak forcing the coolant out of the overflow.
3. stuck thermostat.
4. bad water pump. if the impelers are broken, coolant wont flow.
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But this is dangerous to try.

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