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  #1  
Old 09-21-04, 06:22 PM
jned45
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Help!! Can anyone tell me how to get to the and replace the thermastat in a 1996 Ford Escort 1.9L engine.
 

Last edited by jned45; 09-26-04 at 03:09 PM.
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  #2  
Old 09-21-04, 08:13 PM
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Sure

Unhook the battery and drain the cooling system
Follow the upper radiator hose to the engine, that's your thermostat housing
You'll prolly have to remove the air intake tube, crankcase breather, and PCV hose to get to it
You may also need to unbolt a bracket that holds a heater hose to get to it
Remove the hose attached to the housing
Remove the bolts (you'll know which ones by now) and the housing
You may have to tap the housing a little to get it loose (rubber or dead blow hammer)
Note which way the thermostat is facing
Clean off the old gasket really good
Stuff a rag in the opening-it'll keep old gasket gunk from fallin in
Clean the surfaces w/acteone
Put the new thermo in-make sure it faces the right way(spring to engine) and the rubber seal is fully compressed inthe housing and the tabs are aligned with the slots
Put some RTV sealant on both sides of the new gasket, a nice, thin layer
Install the housing and bolts
Then hook the rest back up
Should be good to go
 
  #3  
Old 09-23-04, 07:19 AM
jned45
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Thanks for the infor. Was hoping it wasn't down there!!.. Will let you know how it comes out...
 
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Old 09-26-04, 11:59 AM
jned45
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Relay for engine fan - location

Thanks Slickshift. I only had to remove to breather tube and the spark plug wire electronic rotor?? that is mounted right above the thermostat housing without removing the spark plug wiring. Like you said You do have to unhook the battery first. Getting to the bottom screws is the hardest part. Now I have another problem. My engine fan doesn't work. I check the engine compartment fuse, it is good and I jump the fan from the battery and it works on both wires to it. I'm told that there is a relay but I don't know where it is????
 

Last edited by jned45; 09-26-04 at 02:25 PM.
  #5  
Old 09-26-04, 04:10 PM
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Relay

The relays can be tricky to find (the box can be mounted on the firewall, in cabin or in engine compartment)
And I have gotten the wrong info from Ford as to their location
They must had alot of changes in the mid '90s or something
The first and most obvious place is a black plastic box under the hood
I think it's on the driver's side near the strut tower
If you're lucky it has writing on the top saying stuff like "coolant fan" and showing you which relay (under the cover) it is
Bring the old one to Ford for a replacement (so they get the # off the old one)
Good Luck!
 
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Old 09-27-04, 03:56 PM
jned45
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The Black Box has a couple of fuses in it including one for the engine fan which check out good and there is also a fuse in the fuse panel inside the car for the engine fan but NO RELAY. Everyone agrees that there has to be one but so far even the parts stores that I have check cannot find a listing for one.
 
  #7  
Old 09-27-04, 07:33 PM
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Uh-Oh

Uh-Oh
I may have mentioned about the weirdness of mid-90s 1.9 Escorts
I don't know what is up with that
Try a friendly Ford Service & Parts Dept. (you may have to travel and do a few Dunkin Doughnuts runs (on you) to find one
I would repost your problem and a new thread w/this problem in the heading
Maybe someone else will pop in with a tip
I'll poke around a bit for you
Good Luck!
 
  #8  
Old 10-23-04, 12:48 AM
jned45
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Found two (2) relays covered in a rubber boot type thing for the fan. Attach to the left fender wheel well under the air filter holder. one was blue and one is black. the blue look to be over heated so got a replacemnet for it. however there still is another someware else that controls the power to these ??? Been to the dealership and look in their wiring diagram book but still can't find it. neither can the service manager or parts man. Was told that if I could leave car, they would trace it down for me. At $96.00 an hour I just hot wire the fan for now. until hopefully I find out where it is.
 
  #9  
Old 10-23-04, 04:43 AM
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Yes, it actually uses 3 relays, a cooling fan power relay a low speed and a high speed. The power relay should have power at both BK/W and BK/GN with key on. The BK/R should ground through the starter. If that relay's working, it supplies power on the LG/BK wire to the high speed relay which actually does the switching from high to low. That relay should have power coming in on the BK/W and LG/BK wires. The PCM grounds the R/BK wire to energize the relay only for high speed if the temp reaches 230. Otherwise it just feeds the low speed relay with power. 2 feed wires coming out of the relay go 1 to the low speed relay (LG), the other wire (LG/Y) goes directly to the high speed fan. the low speed relay shoud have power coming in on BK/W (all times) and L/G when high speed is not energized. Y goes out to fan and the PCM supplies ground to the Y/W wire to energize the low speed relay. Start by checking for 2 powers, a ground and a feed the the fan at the low speed relay. Remember, it doesn't energize untill 220 deg. The A/C only activates it at certain speeds. You should be able to manually activate it by unplugging the temp sensor for the computer byt remember, that will put a check engine light on. If you want to see the schematic, give me an E-mail address and I'll mail it to you.
 
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