1992 Ford E-Series Van ROUGH IDLE RUNNING RICH

RON HRABIK

MEMBER
1992 FORD E-SERIES VAN
V8
2WD
AUTOMATIC
127,000 MILES

THE FIRST TIME YOU START ENGINE IT RUNS SMOOTH BUT RUNS RICH, AFTER RUNNING VEHICLE DOWN THE ROAD 20 MILE OR SO NEXT TIME YOU START IT. AFTER IT WAS TURN OFF FOR 5 MIN IT WILL RUN ROUGH AND RICH ENGINE LIGHT COME ON. I REPLACE PLUGS, O2 SENSOR, WIRES CAP, ROTOR, AND ITS STILL DOING THE SAME THING.

4 Replies

RACEFAN966

MECHANIC
5,029 POSTS

Ok I need to know some info so I can help. I need to know which engine you have 5.0 or 5.8ltr and weather or not it has a mass air flow meter and is it a E-150 250 or? Also how old is the fuel filter and the air filter? Do you have a digital multi meter so we can test a couple of sensor that usually cause this problem. Here is a pic of a mass air flow unit to help you with answering that question. It will look similar to this pic and be in the air intake hose between the air filter housing and the throttle body.

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Friday, May 1st, 2009 AT 10:24 AM

RON HRABIK

MEMBER
3 POSTS

ITS E150 5.8 FUEL FILTER IS 3 YEARS OLD AIR IS 1 YEAR OLD AND NO IT DOSE NOT HAVE MASS FLOW METER

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Friday, May 1st, 2009 AT 4:05 PM

RON HRABIK

MEMBER
3 POSTS

STILL LOOKING FOR INFORMATION ON MY PROBLEM

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Saturday, May 2nd, 2009 AT 8:19 AM

RACEFAN966

MECHANIC
5,029 POSTS

Ok I need you to do a couple of tests. One the fuel filter should be changed with the ethenol in our fuel today you chould change once a year or so. Then I would like you to test the Coolant temp sensor for me. I need you to unplug the sensor and get me an ohms reading of the sensor. Then get back to me the ohms of resistance and if you do this when it cold then give the air temp at the time of the test as well. Thanks.

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Saturday, May 2nd, 2009 AT 8:49 AM