- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
You are not getting vacume from the engine compartment. Look for a cracked or broken line.( rubber or plastic) It may even be a line broken off of the engine. It could be off under the dash on passenger side but it is usually in the engine compartment if this was helpful please leave good feedback
You will have to drain all engine coolant.Disconnect your battery and your two heater core hoses that are on the fire wall in the engine compartment.Now inside the car start removing your dash.one dash is removed you will have to open you heater box to gain access to the heater core once you have gain access remove and replace.Now start replacing heater boxes dash board and reconnect heater core hoses and reconnect battery.Now top up your engine cooling system with the engine antifreeze drained you should have a extra jug of coolant in case you spilled or just needed it to top up.Now start car make sure coolant is full when cooling fans come on put rad cap on you have completed the replacement of your heater core.
Disconnect both hoses from the core and one of them also from the engine. Hook the other one back to where you took one off, making a loop. The picture below is not a bronco, but gives you the idea.
By the way, your core is easy to replace. It almost pops right out from under the dash. I ahve included picture below.
Remove and replace heater core procedures:
Disconnect the heater hoses from the heater core tubes and plug hoses.
In the passenger compartment, remove the five screws attaching the heater core access cover to the plenum assembly and remove the access cover.
Pull the heater core rearward and down, removing it from the plenum assembly.
Position the heater core and seal in the plenum assembly.
Install the heater core access cover to the plenum assembly and secure with five screws.
Install the heater hoses to the heater core tubes at the dash panel in the engine compartment. Do not over-tighten hose clamps.
Check the coolant level and add coolant as required. Connect the negative battery cable.
Start the engine and check the system for coolant leaks.
Generally the fuse panel will be located under the drivers side dash or a side panel access drivers side of the dash. Open the door of the vehicle and the end of the dash may or may not have an access. If those two locations are not the source of the fuse panel, the passenger side near the floor under the dash is most likely. There is a cover there (not part of the dash itself) but rather just in front of the door opening. Check these areas for the fuse blinkers. Fuse block for engine and such will only be in engine compartment.
There are three fuse blocks in most late model Cadillacs. The engine
compartment fuse block, the MaxiFuse relay center and the rear
compartment fuse block.
1991-93 Deville, are equipped with a fuse block located in the rear of the engine compartment. There is also a fuse/relay block, located in the glove box behind an access panel, or on the passenger side, under the dash.
Start with your fuses:
Fuses are in two areas. In the interior fuse box (left kick panel, below the dash--fuse chart on the cover) and in the engine compartment fuse box (far upper left as you face the car: fuse chart on the cover). Tail/Brake lights are combined with the Horn fuse in the engine compartment box. The fact that both taillights are out as well as the dash does not suggest the bulbs, but anything is possible. Tail light bulbs are accessed from inside the trunk compartment. Hope this is of some help
there are four.... 3 inside the passenger compartment on the drivers side... hard to tell if they are under the dash or accessable from a panel on the front or side of the dash board.... and one more in the engine compartment near or on the firewall.... passenger side.
Please take a moment to rate this solution.. thanks