Tip & How-To about Heating & Cooling

Trailblazer/Envoy Thermostat

Lots of people do not like this tight spaced job.   I find that if you remove the battery, battery tray, and horn, getting to either the thermostat or Alternator bolts is a piece of cake and makes it a 45 min job instead of fighting it for hours.  Remove the horn to get to the bottom 2 bolts on the battery tray.  Having the battery tray gone opens the whole area up to easier access.

Posted by on

Heating & Cooling Logo

Related Topics:

Related Questions:

1 Answer

Where is the Horn for a 2005 Taurus located?


well it's gonna be somewhere between the grill and radiator, or behind or next to the headlights somewhere. Might be hiding behind the battery? not familiar with that car but space is tight in modern autos it's tucked away somewhere.

Jul 19, 2014 | 2005 Ford Taurus 3.0

1 Answer

mg tf 160


lovely job to do you are ment to remove the whole rear end complete with engine/gearbox . but you can do it by removing the rear suspension arms/ drive shafts and moving the gearbox into the subframe and work through the space between engine/gearbox, its tight but can be done

May 18, 2013 | 2005 MG ZR

1 Answer

can't remove heating element because of tight space


Suggest disconnecting water supply / inlet & outlet. Drain tank using garden type valve located at bottom of tank. Rotate tank for better element access.

Feb 28, 2012 | Rheem Water Heaters

2 Answers

The horn in my 1997 SAAB 900 has stopped working. Started as an intermittent fault, but now permanent. Fuses and relays under the bonnet have been checked and wires to the horns look sound. Any ideas?


It's almost certainly the horn its self. It's not a very common fault, but it's not unheard of. I would suggest testing the horn directly by running a pair of wires from the battery directly to the terminals on the horn. If it still fails to work then the fault is proven to be a defective horn.

Some hornd have an adjustment nut in the centre (Depending if it's a diaphram type horn or a "snail shell" design). If you have proven that the horn is at fault, there's no harm in having a fiddle with any adjustment nut you can find to see if it helps. Experience shows that, as a general rule, once they start playing up, a replacement is usually the best action because they tend to fail again quite quickly.

Your local Auto factors will supply a generic horn that will do the job.

Are you in the UK? If so, Halfords stock the "Mountney Magnum Car Horn" and they are half price right now at £5

Jul 19, 2011 | 1997 Saab 900

3 Answers

I have a dodge caravan 2000, and the horn doesn't work. I changed the relay fuse and fuses. It still doesn't work. Please help.


REMOVE HOTWIRE HORN OR PRESS REMOTE BUTTON LOCK CAR DOORS IF YOU HEAR CAR HORN BLOWS WHEN ACTIVATE CAR ALARM. HORN WORKING.MORE LIKELY THE AIRBAG AND HORN PAD NEED REPLACING.IF YOU GOING TO FIX. DISABLE AIRBAG IN THE STEERING WHEEL BEFORE REPLACING THE AIRBAG AND HORN PAD. TURN OFF RADIO.THEN DISCONNECT NEGATIVE BATTERY CABLE FOR 20 MINUTES BEFORE REMOVING AIRBAG IN STEERING WHEEL.THAT HORN PAD WITH AIRBAG IS NOT GOING TO BE CHEAP.

Jun 12, 2011 | Dodge Caravan Cars & Trucks

Not finding what you are looking for?

294 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

2550 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Loading...