Jump to content
Do Not Sell My Personal Information

Heater Not Working And Engine Temp Problems?

Recommended Posts

I have a Toyota Corolla T sport and I am having problems with firstly the heater. Even when set to hot the air coming out is warm at best. Secondly the engine temp indicator on the dash seems to be shooting up, not to max, then quickly dropping back to normal. This only happens once every time i drive the car. Has anyone had similar problems or a solution?

Link to post
Share on other sites


There are several things could be causing your problems.

Eliminating the easier ones first might be the best route.

You say your temp gauge goes up to high just once, is that about 5 mins after you have set off from cold ?

If so I would say its the thermostat sticking a bit when its trying to open fully.

If you have run for 30 mins and the engine is clearly warmed up and you still do not get any heat from the heater, first check the cabin air filter is not totally blocked, if ok and you do get a good air flow into the cabin then the is a strong chance the heater matrix is blocked.

There are some good posts in this forum on how to clear the blockage.

Apart for these two common faults, there are other things that could give you these problems so don't go ripping things out until you are sure of the cause.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...