Check Engine Light

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  #1  
Old 03-04-04, 11:46 AM
cdw1023
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Unhappy Check Engine Light

I drive a '97 Ford Escort. My car has failed MD emissions test due to the check engine light being on. I took the car to the shop. They ran a diagnostics test and said that the radiator & OS sensor needed to be replaced... which I did. That did not turn off the light. So now they're saying that it could be the transmission... which I have not noticed any problems with.

Are there any 'car experts' out there that might have some ideas?

I am a single mother, with limited income, and the shop repairs are seriously breaking the bank.

Thanks in advance

-cdw1023
 
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  #2  
Old 03-04-04, 12:17 PM
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we'll need the trouble codes first...

...at this point it's hard to see the relationship with the radiator...and even harder with the transmission.

do this first...get the exact trouble code from whoever diagnosed it...if they can't or won't give it to you, go to autozone or advance auto and have it done for free and post back here with the info and we'll offer up some suggestions...
 
  #3  
Old 03-04-04, 12:25 PM
cdw1023
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Failure Codes

Here are the failure codes from the auto shop...

P0135~HO2S11 Heater Circuit Fault/ P1703~Brake switch out of range/ P1116~ECT Sensor out of range. Test for VPWER at O2 Sensor (ok). Test for Resistance between VPWER and Heater Circuit ground at O2 Sensor (fail/open).

Does this help?
 
  #4  
Old 03-04-04, 12:43 PM
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ok...

...i can see from what you've written that they diagnosed the 02 sensor and replaced it as the diagnosos indicates. i don't see the relationship between the ect (coolant temp sensor out of range) and replacing the radiator...there may be one, i just don't see it from the info that they provided you.

the brake switch thing wouldn't turn the light on...just the other two. i can't see how they jump to it may be a trans problem either. it needs to be rescanned for codes to see which one came back and rediagnosed. i'm assuming that the light came back on after you got the car back...i'd take it back to them and ask to see them scan it for codes (but that's me). you need to know what made the light come back on...did they blow the diagnosis or did they blow the repair...either way, they owe you something...at least that's what it looks like to me.
 
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Old 03-04-04, 12:53 PM
cdw1023
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Check Engine Light

The check engine light has actually been on for quite some time now. About a year ago a mechanic friend of mine said that the computer chip was fried and needed to be replaced. However, that's not what I'm being told now.

I did have the O2sensor and the radiator replaced.

They said something about the transmission sensor. Do you know what that is? I looked around at auto parts via internet, and found nothing called that. Would it be called anything else and would it fix the light?
 
  #6  
Old 03-04-04, 01:08 PM
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nah...

...don't go searching for parts and trying them. did they turn the light off by clearing the codes after the parts were replaced? if not...that's why the light is on.

there are several sensore possibly on that trans....if they can't give you better info that that...don't let them work on the transmission...whether it has a problem or not.
 
  #7  
Old 03-04-04, 01:19 PM
cdw1023
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Engine Light

They did tell me that they resent the codes and the light when off... however after they drove it for about 5 miles, the light came back on.
 
  #8  
Old 03-04-04, 02:03 PM
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find out...

...what code came back...they need to perform the diagnosis associated with THAT code....not tell you "maybe it's the transmission sensor"....tell them you have to know exactly what's wrong before you'll authorize anymore work
 
  #9  
Old 03-04-04, 02:24 PM
cdw1023
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Thanks

Gotcha. I am going to have it retested on Monday. Thanks for you help.
 
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