service engine soon light

2002 Dodge Stratus R/T

85,000 miles

Seem after filling the gas tank the service engine soon light comes on and stays on till the tank is about half empty. The light comes on about 30 miles after refueling. The fuel
cap is on as tight as it will go. This has been going on for the past 5 or 6 fuel tank refills...

 

stays on till the tank is about half empty. The light comes on about 30
miles after refueling. The fuel

Get the fault code and post it!! Most parts stores will do that for free.

Glenn Beasley
Chrysler Tech

 

Bad seal on fuel cap?

 

If you are filling it up and then immediately driving off it has nothing to
do with the fuel cap. Find out what fault code has been stored

Glenn Beasley
Chrysler Tech

 

cycle the ignition key 3 times and watch the odometer to see if any fault codes
are recorded and displayed then disconnect the battery for 5 minutes and see
what happens with the lite

 

This has been my guess.

 

Hey dirty I see you found out how to use spell check!!! now just learn how
to post to the correct person.

 

The only time that monitor is run would be when the outside temp is within
10 degrees of the engine temperature. If your engine is hot at the pump the
monitor will not run until it cools down.
Find out what fault code is stored.

Glenn Beasley
Chrysler Tech

 

Thanks and will do as soon as I get a chance. Does the light have to be on or does the microprocessor store errors? The light went back out yesterday afternoon, fuel tank @ 2/3
full...

 

OK. Finally got to AutoZone. Code was "02 sensor Bank 1 Sensor 2"

Codes do not say replace sensor. They say check it out.
4 or 5 different codes for that sensor.
What was the code no?
MT

 

Never saw a code number. It read "2 Codes" then next. Read "O2 sensor". Then next and read "O2 Sensor Bank 1 Sensor 2". What's there to check out on an O2 sensor? and if you
remove one with 85,000 miles on it why not replace it?

 

Par for the course when someone uses a half assed diagnostic tool.

There are numerous tests that can be performed WRT voltages,
switching time, cross counts, switching thresholds, heater
current.

Because it would be pointless until you knew the exact failure.
For as much as the parts store told you, the SES light could be
triggered because of a broken wire or bad ground to the O2 heater
circuit, and replacing the sensor itself is not likely to be a
remedy in that case.
Since the sensor sells for $175.00, it would make more sense to
be sure.

 

Actually I seem to remember seeing "O2 Sensor Heater" in the first code...

Considering this car was serviced 3 or so months ago by the local Dodge Dealer for a SES light with a $1200.00 bill attached for tune-up et, al, I'm reluctant to return it to the
same dealer. The 'code' at that time was "multiple misfires" as quoted by the service writer.

 

The whole point of OBD2 is to be able to specifically define the
failure. Somewhere in Nebraska isn't going to cut it.

Do you honestly think that some McDonalds reject at Autozoo is
going to be more proficient?
The cost of repairing a car is something that should be
considered before the purchase, not after. It is what it is.
If you don't trust the last dealer, go to a different one or go
to an independent shop.

And odds are that it's totally unrelated to the problem you have
now.

 

And you're convinced the dealer's tech didn't graduate from Autozoo?

Thanks for the dissertation, Again not very helpful. How would one know just what will go wrong and the cost 5 years hence? Are you always so angry?

Agreed! I've never trusted dealer service shops. However knowing the O2 sensor might be at fault going into the shop is a huge advantage.

Priceless! Possibly 2 major repair bills inside of 3 months sounds to be a somewhat excessive need for repair on this car. Maybe Chrysler has gotten the last dollar from my
pocket!

 

I'm convinced the autozoo guy didn't graduate from Chrysler
training.

Actually, very helpful.

Call any service facility (dealer or independent) and ask them
how much a tune up (or any other service) will cost.

What makes you think I'm angry?
Your car needed service at 80xxx miles, completely normal, it now
has some more needed service, also completely normal. Mechanical
devices, especially ones as complicated as a late model
automobile wear out and break, they also periodically need things
replaced as maintenance.

Big difference between knowing what "might be wrong" and knowing
what actually -is- wrong.

You haven't been driving very long, have you?

I'd suggest a GM product.
(you need educating)