1997 Ford Explorer Rough Idle

DAVID ROADS

MEMBER
1997 FORD EXPLORER
6 CYL
4WD
AUTOMATIC
140,000 MILES

I have a 1997 Ford Exployer that has a rough idle until the temp comes up to normal during a cold start. The engine will die several times during start up. Once the engine has reached normal operating temp, it runs great. I have replaced the idle and map sensors has well as a general tune up( plugs and wires). I have also looked for vacumn lines for possible leaks but did not detect any.

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Are there any trouble codes? Honestly, to me it sounds like a problem with the temp sensor. It determines the outsude temp and tells the computer how righ to make the air fuel mixture. Have you checked that?

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Wednesday, January 6th, 2010 AT 9:47 PM

DAVID ROADS

MEMBER
2 POSTS

Yes, P0171 and P0174. If it is extremely cold out and I let the vehicle idle for a while, I might get the misfire codes of P0301 - P0306. I have not checked the temp sensor, but will do so next.

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Thursday, January 7th, 2010 AT 9:38 AM

BRENT NEWTON

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1 POST

UPPER AND LOWER INTAKE GASKETS $30.00 WORTH OF PARTS. I HAVE HAD THIS PROBLEM FOR YEARS FIXED IT LAST WEEK, CAME ON SOME SITES TO OFFER SOME HELP FOR OTHER FRUSTRATED PEOPLE. WHEN THE ENGINE IS COLD EVERYTHING IS CONTRACTED AND ALLOWS THE INTAKE TO SUCK AIR, WHEN IT WARMS UP EVERYTHING EXPANDS AND MAKES THE GASKETS SEAL. THE INTAKE IS NOTHING BUT PLASTIC AND THE GASKETS ARE O RINGS, THE GASKETS WERE DRY AND SOME WERE EVEN BROKEN. MAKE SURE YOU REPLACE UPPER AND LOER GASKETS. MY LIFE IS MUCH NICER NOW. HOPE THIS HELPS

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Monday, January 18th, 2010 AT 12:59 AM