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Discussion Starter · #1 ·
I just got my '90 escort lx. It is getting terrible mileage, and all fingers point to the o2 sensor, since the injector was just replaced. It also rattles really bad when its started, which is a transmission mount as stated by the previous owner.
Does anyone have pictures, or tips on how to change the two things? I can plainly see the o2 sensor, but it looks like it might be hard to get a wrench to. Who knows? any help would be appreciated, thanks
 

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Sorry I dont have any experience with 1st gen. Escorts, but...
On my 2nd gen. Escort, the only way I get the O2 sensor out or back in, is by removing whatever is in the way. On my car its worthwhile to remove the radiator fan -at least-. With the radiator also removed - its easy to get to the O2 sensor. Since I removed the hoses for the (no longer working) air conditioning, its also easier to reach things.

With the motor mount, usually you have to support the engine on a jack, so you can move it up/around to get the old motor mount unbolted and the new one in. Be sure to have a block of wood between the top of the jack and the bottom of the oil pan or transmission - so you dont crack or dent them while lifting. You can expect some of the bolts to require spraying with penetrating oil.

Also, If the bottom of the engine/tranny are fairly oily, you might want to consider replacing the other motor mounts. Motor mounts go bad with time and miles, and if they are oily, they go bad sooner.
 

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"Rattles" is a suspicious description for a bad motor mount, especially coming from a seller. Have you looked under the hood while someone starts it to verify this? See any damage from the engine hitting somewhere causing the "rattling"? Not to worry you but it could be something more serious. Check it out before you spend time and energy on a mount.
 

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I use a box end wrench to remove the 02 sensor on my '88. Just thread the plug and wires through the wrench down onto the sensor. It's a 22 MM. You won't get much turn each bite, but if it has anti sieze on the threads you'll just have to loosen it a little, then it will turn out with your fingers.
 
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