I have a 96 Ford Contour that is running really rough. And dont know hwat else to try!

Tiny
JAMIELEE357
  • MEMBER
  • 1996 FORD CONTOUR
  • 110,000 MILES
.I have to give it some gas in order to get it started. Once it is started and at an idle the engine starts shaking real bad and its really loud. I have replaced the spark plugs, mass air flow sensor, and the coolant tempature sensor also. Ive checked for vaccum leaks, no luck. I just dont know what else to try anymore. Help please?
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Friday, March 9th, 2012 AT 5:42 PM

9 Replies

Tiny
HMAC300
  • EXPERT
Check fuel pressure and clean throttle plate with choke cleaner. Make sure air cleaner duct work has no holes in it.
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Friday, March 9th, 2012 AT 8:26 PM
Tiny
JAMIELEE357
  • MEMBER
How much fuel pressure is it suppose to have?
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Friday, March 9th, 2012 AT 9:19 PM
Tiny
HMAC300
  • EXPERT
30-45psi engine idling
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Friday, March 9th, 2012 AT 9:20 PM
Tiny
JAMIELEE357
  • MEMBER
It was a little over 60 and bled back down to about 55
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Friday, March 9th, 2012 AT 9:28 PM
Tiny
HMAC300
  • EXPERT
It'sok then scan the engine for codes then
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Friday, March 9th, 2012 AT 9:30 PM
Tiny
JAMIELEE357
  • MEMBER
I have done that. I had po118 which says engine control ignition relay feedback circut.
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Friday, March 9th, 2012 AT 9:32 PM
Tiny
HMAC300
  • EXPERT
Then why didin'tyou put that in your first question?This should really be checked by a pro as it can be a bad connection at the iat and ect as well as a shorted wire or a bad pcm. In order to ruleout a pcm you really need a pro to look at this as to not spend money unecessarily.
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Friday, March 9th, 2012 AT 9:40 PM
Tiny
JAMIELEE357
  • MEMBER
I am a pro. I just have replaced enough as is. And im tired of this guessing game I have going with this car. I have to have enough room on this car to make a profit. And im finding the only to narrow the search down is to replace parts. And so far it has not brought me any luck. I will try the ect because I did notice it didnt look all that great but it seems more as if a vacuum leak more so than anything else.
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Friday, March 9th, 2012 AT 9:49 PM
Tiny
HMAC300
  • EXPERT
A vacuum gauge should have found that if it's a leak or a can of choke cleaner sprayed onintake and around tb.
10) DTC P0118 Or P0113: Induce Opposite DTC (117 Or 112)

DTC P0118 (ECT) or P0113 (IAT) indicate corresponding sensor signal is more than self test maximum. Maximum signal voltage for ECT and IAT sensor is 4.6 volts. Possible causes for excess voltage signals
are:
? Open circuit in wiring harness (IAT or ECT).
? Faulty connection.
? Faulty sensor.
? Faulty PCM.

Turn ignition off. Disconnect suspect temperature sensor. Connect a jumper wire between signal circuit (ECT or IAT) terminal and SIG RTN terminal at sensor wiring harness connector. With scan tester installed,
turn ignition on.

NOTE: If communication link error is displayed, remove jumper wire and go to step 12).

Access ECT or IAT PID. If the PID is less than 0.2 volt, replace sensor and repeat QUICK TEST. If PID is 0.2 volt or more, remove jumper wire and go to next step.

11) Check Continuity Of Sensor Signal & SIG RTN Circuits

Turn ignition off. Ensure suspect temperature sensor is disconnected. Disconnect PCM 104 pin connector. Check for damaged wiring, and repair as necessary. Install Breakout Box (014 00950), leaving PCM
disconnected. Measure resistance between test pin No. 38 (ECT sensor) or test pin No. 39 (IAT sensor) at breakout box and SIG RTN terminal at sensor wiring harness connector. Also, measure resistance
between test pin No. 91 (SIG RTN) and SIG RTN circuit at sensor wiring harness connector. If both readings are less than 5 ohms, replace PCM, and repeat QUICK TEST. If either reading is 5 ohms or more,
repair open circuit and repeat QUICK TEST.
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Friday, March 9th, 2012 AT 10:33 PM

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