99 Caravan hesitating on freeway

In the past two weeks my Caravan has been having hesitation (ever so slight but it is there), especially on the freeway. it feels like its a problem from the fuel line. It has 117,000 miles. Could it just be the higher ethanol they are putting in the gasoline now, or would there likely be a more serious problem in the fuel line, and how could I tell?

Thanks, cl8

when did you last have the spark plugs replaced?

Or the fuel filter changed.

if it has not been tuned up yet it is over due. I would start by changing spark plugs, wires, fuel filter, and air filter.

I can't say I remember the last time I had spark plugs or the fuel filter changed, But in march when I had the oil changed I asked my mechanic to inspect my vehicle because I was going on a 300 mile trip, one way, is that something he could have missed?

How often should those be replaced?

thanks, cl8

They should be replace at 90K on that model. this will help for sure.

I'm pretty sure I had a 90k tune up but that was quite a while ago.
I just dont want my mechanic to say I need more done than necessary:rolleyes:

you might have a bad egr valve also. i just had a 05 doing the same thing and after 8 hours because of no codes were present i figured it out

you might have a bad egr valve also. i just had a 05 doing the same thing and after 8 hours because of no codes were present i figured it out

Yes my neighbor, who helped me with my air filter said he saw evidence of a bad valve.
What I did this year and last year was buy Chevron gas treatment and put that in my tank. It seems to have helped.
I figured it might just be the change in the formula for gasoline in the spring thats hard on my engine.:dunno:

Yes my neighbor, who helped me with my air filter said he saw evidence of a bad valve.
What I did this year and last year was buy Chevron gas treatment and put that in my tank. It seems to have helped.
I figured it might just be the change in the formula for gasoline in the spring thats hard on my engine.:dunno:

What the evidence of a bad EGR vavle? Just curious to I know what to look for in the future.
Thanks.

What the evidence of a bad EGR vavle? Just curious to I know what to look for in the future.
Thanks.

The air filter had oil on it.

possible fuel pump, common failure..or a engine misfire, a scanner would tell a lot of info

^ I hope not that!

The air filter had oil on it.

Good to know, thanks!