2003 Dodge Caravan Mileage

270WIN

MEMBER
2003 DODGE CARAVAN
6 CYL
FWD
AUTOMATIC
79,000 MILES

My 2003 Dodge Grand Caravan has suddenly gone from 19-20mpg around town to 14-15mpg around town at 79,000 miles. This litterally occured from one tank of fuel to the next. I'm assuming it needs a tuneup. Is there anything other than plugs/wires filters and maybe a fuel injector cleaning that you can suggest?

Saturday, June 14th, 2008 AT 7:02 AM

2 Replies

OBXAUTOMEDIC

MECHANIC
3,711 POSTS

Hello,

That is pretty much what you need.

One other question what grade fuel do you use, did you change grades. A lower octane fuel will reduce you milage.

Also is check engine light on? Usually a bad O2 Sensor will reduce milage.

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Sunday, June 15th, 2008 AT 9:58 PM

270WIN

MEMBER
3 POSTS

There's no check engine light and we've always ran 87 octane QT gasoline. I drove it the past few days and it's getting 18 mpg again. Now I know why my wife wants a Magnum with a HEMI! It was actually pretty funny to find out she likes to get it going quickly. I've got an old Nova drag car. Maybe she needs some time at the track!

Anyway, i'll tune the van and see if it stays better. Thanks!

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Sunday, June 15th, 2008 AT 10:23 PM