Idling Rough

JUSTIN ADAIR

MEMBER
1999 FORD EXPLORER

Okay! I have a 1999 Ford Explorer 4X4 Eddie Baurer Edition. So here's the story! Every once and awhile when I would park my explorer I will can smell alittle fuel just for a few seconds. This weekend I filled up and went to the Lake. I climbed a few sand hills but nothing rough. Well I drove back into town and filled back up at the same station on the same pump. I drove home then drove cross town and my truck started idling rough in Reverse and in Drive. Last time I had the same problem with the idling and I changed the Sparkplugs and it was good. I was wondering if maybe the fuel issue could be related. Also the fuel smell seems to be coming from the driver side passanger door? (Fuel filter/Fuel Pump? Any suggestion.

Plugs are only 6 Months old (Every other plug was blown when I got the vehicle). I did not change the plug wires?

Should I change the fuel filter? I replaced the gas cap.

Also what should my vehicle Idle in Drive? Its currently 500 maybe 550 in drive and just under 1000 RPM's in park and neutral.

5 Replies

JACOBANDNICKOLAS

MECHANIC
108,192 POSTS

I would start by checking for a vacuum leak.

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Monday, February 13th, 2012 AT 9:10 PM

JUSTIN ADAIR

MEMBER
42 POSTS

No Vacuum leaks! I think it may be the IAC & TPS but have no clue. The RPM's slightly fluxuate up and down. Down more if I turn the wheel slightly or have my lights, radio and a/c on. It is not the Altenator I had it tested yesterday as a precaution. Also the Spark Plugs were changed 4 months ago not 6 as I stated above as well as a new air filter and oil change 2 months ago (checked receipts). MAF seems to be working. So if it is not on of those my next guess would be the fuel pump? Any suggestions?