Question about 1993 Pontiac Bonneville

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Heat will not turn off


i turned on my heat for the first time this season and now it won't turn off. i had it set to 69 and it's up to 74 now. I've tried everything according to the manual and no luck. please help. Whenever i turn off my car my heater still runs.. my keys are in my hand.. but the heater is still blowing. and it runs my battery down. so now i have to unplug my battery and plug it back in order to go anywhere.
can anybody tell me whats wrong with my car?

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Should turn off with the key,someone has hotwired it and now the control switch has packed in,rewire the motor through the ignition switch

Posted on Jan 10, 2009

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Hi Missy:
Your question is in the cars and trucks section, but it sounds like it is about your home ventilation system.

I'm thinking that you probably have an HRV (Heat Recovery Ventilation) system that you are asking about.
- Even in the non heating seasons, these units are intended to operate for 20 minutes of every hour, when humidity gets high, or when a manual timed switch is pressed for bathroom exhaust fans.
- Inside air from the bathrooms and possibly kitchen is sent through the HRV to the outdoors.
- Fresh outside air is drawn in through the HRV at the same time and distributed throughout the home via the vents you are referring to.
- These devices are designed to improve air quality in the home, AND to reduce costs in the heating season.
- Additional devices like furnaces, air conditioners and heat pumpscan be part of the system so it can get complicated.

-If possible, I would be trying to check with the builder of your home to find out what system had been installed.

Hope this helps.
Ted (Retired Building Inspector)

Jul 06, 2015 | Cars & Trucks

1 Answer

2001 Villager Estate. If the dash does not turn heat off, what are my other options?

remove heater hoses from the firewall and connect them to each other until the weather changes and you want heat then reverse this process each season

Jun 22, 2015 | Mercury Cars & Trucks

2 Answers

My 03 Saturn VUE water temp overheat light never turns off.

Possible that the ECT (engine coolant temperature sensor) is faulty, or the wiring to it has been compromised. Try looking the wiring over. If nothing jumps out at you, replace the sensor. Keep in mind, it's the season for critters to seek warmth from engine heat.

Dec 09, 2014 | 2003 Saturn VUE

2 Answers

Car won't turn over

few things to look at . does the fuel pump come on when you turn the key to the start position? was the check engine light? do you know if you have spark? if you spray starter fluid in the throttle body will it start?

Jan 31, 2013 | 1999 Mercury Sable

1 Answer

Must run heater full blast so the motor wont over heat

You can't expect to pull much with that type vehicle

Sounds like you have all sorts of issues just using it,
that need to be solved

Have to get rid of the way something was added,so
your dash works.

Having owned a trans repair business,your trans won't
last one season, if you pull anything

Jun 07, 2012 | 2004 Buick Rendezvous

1 Answer

No heat till you start driving and then fan will kick on and not shut off but it doesnt overheat

You won't get heat right away. The heat has to have time to reach the heater core. That's where you get the heat for the passenger compartment. But if the fan isn't turning off, then I would have it checked for an electrical problem.

May 05, 2012 | 1999 Dodge Caravan

1 Answer

What is the timing setting on a 2000 ford ranger 3.0 v6

The timing belt syncs everything in your motor to work at the same time, the spark plug ignites, the turns the piston, then turns the cam then turns the transmission...all have a certain timing that each one needs to take place and if that is out of whack your car won't work properly, timing belts should be changed every 50k miles. most likely won't be able to do it on your own because the engine mounts need to me removed in order to get a new belt on and you need a timing light as well. Spend the 400 - 500 bucks to have someone do it, if it breaks it could cost around 1200

Dec 14, 2011 | Ford Cars & Trucks

1 Answer

2004 focus 80,000 miles/6 weeks ago, using ac with blower on high, blower gradually shut off and car produced bad smell. Drove home with ac off, blower off, had car checked and nothing found. Now it's...

The 'whirring' sound from the blower motor could be a dry bearing or damaged armature (part of blower motor that the brushes ride on), or just wore brushes. The smell could be the motor winding wires burning due to blower motor bogging down and overheating. You can replace blower motor with new or salvaged one.

Dec 09, 2010 | Ford Focus Cars & Trucks

1 Answer

Car runs fine till it is turned off

two things come to mind....
1- a electrical component may be heat sensitive and not function after turn off heat soak
2- your fuel pump check valve isn't holding fuel pressure in the fuel loop 
Next time check for spark...if thers's spark it's a fuel problem

Mar 24, 2009 | 1997 Oldsmobile Achieva

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