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Discussion Starter · #1 ·
I have a 93 Escort 1.9 coupe/hatch back 2door, five speed with close to 100k miles. My wife bought it new in 94 and has taken good care if it ever sense.
I have restored it over the past year and simply can not figure out one annoying problem.
When I first start it, hot or cold, the engine revs up then down. It also does the same thing when shifting gears, its like the throttle sticks for half a second then drops. Other than that, the car runs great and is a lot of fun to drive.
Over the past year I have replaced a ton of parts trying to shot gun the problem. All parts are factory Ford parts or good used parts if new was not available.
  • throttle body, twice, used.
  • TPS three times, OEM new
  • Air Idle Switch, twice, OEM, new
  • Fuel pump, After market, new,
  • spark plugs, cables, etc. OEM new
  • O2 Sensor, OEM new
  • Fuel injectors, aftermarket, new
  • Fuel filter, twice, OEM
  • Mass Air Flow Meter, three times, OEM new
  • Temp switch, aftermarket, new
  • Fan switch, OEM new
The only other thing I have not been able to find is a throttle cable, This one I have taken out, inspected, cleaned and put back in many times. The reason I have not changed it is because I simply can not find one. It is a late 93 1.9 with a cable that only fits that short period of build. The connections are different than every other year, Aftermarket, OEM and used are just not available.
So, Does anyone have any suggestions ? at all ? please ?
Thank you very much.
Paul
 

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I looked in the rockato(dot)com listings. They show an "accelerator cable" for the 92,93, and 94 years, all for LX's having the same ends on them. The images enlarge if you click on them.
While i have never tried to replace an accelerator cable, it the end at the throttle body is different, I would try to make it fit.

I have had a throttle that would get slightlly stuck. I free it up by taking off the large rubber air inlet duct, and while holding the throttle wide open, pushing a soaked rag in, to wipe away the buildup of crud behind where the throttle meets the interior of the throttle body. I also put a drop of 3-in-1 oil onto the throttle shaft. Does your escort have the factory cruise control?. I think that meets up with the interior end of the throttle mechanism, and might be binding on something.
 

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Discussion Starter · #3 ·
I looked in the rockato(dot)com listings. They show an "accelerator cable" for the 92,93, and 94 years, all for LX's having the same ends on them. The images enlarge if you click on them.
While i have never tried to replace an accelerator cable, it the end at the throttle body is different, I would try to make it fit.

I have had a throttle that would get slightlly stuck. I free it up by taking off the large rubber air inlet duct, and while holding the throttle wide open, pushing a soaked rag in, to wipe away the buildup of crud behind where the throttle meets the interior of the throttle body. I also put a drop of 3-in-1 oil onto the throttle shaft. Does your escort have the factory cruise control?. I think that meets up with the interior end of the throttle mechanism, and might be binding on something.
I looked in the rockato(dot)com listings. They show an "accelerator cable" for the 92,93, and 94 years, all for LX's having the same ends on them. The images enlarge if you click on them.
While i have never tried to replace an accelerator cable, it the end at the throttle body is different, I would try to make it fit.

I have had a throttle that would get slightlly stuck. I free it up by taking off the large rubber air inlet duct, and while holding the throttle wide open, pushing a soaked rag in, to wipe away the buildup of crud behind where the throttle meets the interior of the throttle body. I also put a drop of 3-in-1 oil onto the throttle shaft. Does your escort have the factory cruise control?. I think that meets up with the interior end of the throttle mechanism, and might be binding on something.
Wow, Thank you for the quick input. Much appreciated, Well, that's the problem I come up with as far as the cable goes. for whatever reason, Ford used a different cable on just the last part of 93, 1.9 only. the housing hooks up to the brackets totally different and the end of the cable on the throttle side is a barrel nut instead of a loop like the ones sold today. Might be forced to have one built someplace. Hope that makes sense. I honestly think its not the cable, However, who knows because that's why I am here looking for help. I have cleaned the throttle body and also purchased a good when removed used one and cleaned it as well. Should not be any gunk at all. I have not tries the three in one oil idea (did try spray lubes) but definitely will as soon as I can. The car is winterized in a Connex container for the winter. And no factory or aftermarket cruise control. also have checked normal stuff like floor mats and even driving barefoot because of my size 13 boots. See? I'm trying anything.
Thank you again.
 

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It sounds like the parts are indexed wrong because I can't recall EVER seeing a 91+ SOHC Escort with that kind of throttle cable connection. They are all like you said, with a barrel on the end. Even my 97 was that way. Diagnosing it would be easy, just pop the hood and stomp on the gas pedal while watching the throttle body. If it all moved freely then your problem is elsewhere. Personally, I think the issue the issue sounds like it could be a vacuum leak.
 

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I think there's only a few elements that would interrupt or intervene with the throttle butterfly returning. assuming it's not the cable and the pulley that wraps around at the throttle body, maybe the return spring at the throttle body? I know (vaguely) that Ford had some problems with throttle body deposits, and I think the 95/96's, they don't recommend cleaning them, because of the special coating they used inside that fixed the problem.

The other thing is the idle air solenoid, it's a computer-controlled leak of air around the throttle plate,it's atop the throttle body, right at the top. A 93' might have the earlier type (two-piece). Not sure if it interchanges with the later one-piece one. I've got examples of both, and they seem to interchange physically, but don't know about electrically. This is the part that gives the ECM the ability to control the idle speed, and act like a dashpot, to hold the throttle open partially, for engine coast-down, for emissions control. If you have AC, it also kicks the idle up when the compressor comes on. I assume you probably changed this with the throttle bodies. that's my take.
 

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I have a 93 Escort 1.9 coupe/hatch back 2door, five speed with close to 100k miles. My wife bought it new in 94 and has taken good care if it ever sense.
I have restored it over the past year and simply can not figure out one annoying problem.
When I first start it, hot or cold, the engine revs up then down. It also does the same thing when shifting gears, its like the throttle sticks for half a second then drops. Other than that, the car runs great and is a lot of fun to drive.
Over the past year I have replaced a ton of parts trying to shot gun the problem. All parts are factory Ford parts or good used parts if new was not available.
  • throttle body, twice, used.
  • TPS three times, OEM new
  • Air Idle Switch, twice, OEM, new
  • Fuel pump, After market, new,
  • spark plugs, cables, etc. OEM new
  • O2 Sensor, OEM new
  • Fuel injectors, aftermarket, new
  • Fuel filter, twice, OEM
  • Mass Air Flow Meter, three times, OEM new
  • Temp switch, aftermarket, new
  • Fan switch, OEM new
The only other thing I have not been able to find is a throttle cable, This one I have taken out, inspected, cleaned and put back in many times. The reason I have not changed it is because I simply can not find one. It is a late 93 1.9 with a cable that only fits that short period of build. The connections are different than every other year, Aftermarket, OEM and used are just not available.
So, Does anyone have any suggestions ? at all ? please ?
Thank you very much.
Paul
Same thing happened to mine only it would rev so high I thought it would blow. It was the throttle cable so I would just give it a good squirt with some grease, WD40, any type of lubricant and it would stop until it needed more. I would recommend like axle grease just slathering it up and down the cable from where it hooks up at both ends all the way down to the other end. Worked for mine. Same symptoms.
 

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I have a 93 Escort 1.9 coupe/hatch back 2door, five speed with close to 100k miles. My wife bought it new in 94 and has taken good care if it ever sense.
I have restored it over the past year and simply can not figure out one annoying problem.
When I first start it, hot or cold, the engine revs up then down. It also does the same thing when shifting gears, its like the throttle sticks for half a second then drops. Other than that, the car runs great and is a lot of fun to drive.
Over the past year I have replaced a ton of parts trying to shot gun the problem. All parts are factory Ford parts or good used parts if new was not available.
  • throttle body, twice, used.
  • TPS three times, OEM new
  • Air Idle Switch, twice, OEM, new
  • Fuel pump, After market, new,
  • spark plugs, cables, etc. OEM new
  • O2 Sensor, OEM new
  • Fuel injectors, aftermarket, new
  • Fuel filter, twice, OEM
  • Mass Air Flow Meter, three times, OEM new
  • Temp switch, aftermarket, new
  • Fan switch, OEM new
The only other thing I have not been able to find is a throttle cable, This one I have taken out, inspected, cleaned and put back in many times. The reason I have not changed it is because I simply can not find one. It is a late 93 1.9 with a cable that only fits that short period of build. The connections are different than every other year, Aftermarket, OEM and used are just not available.
So, Does anyone have any suggestions ? at all ? please ?
Thank you very much.
Paul
Hey if you are still having the problem I think I have two throttle cables in storage. I will go find the me and take pics and post them to see if you want them. Cheap.
 
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