They are new tires.... but ill take another look and see if i cant figure it out ........ thanks for the tips .............

You are on the right track, it sounds like you have a TC problem. This is a pretty common thing with the Ford transmissions from that time period. Generally what I like to do is a transmission service/flush and add a bottle of friction modifier to the transmission, that will usually take care of that shudder you are feeling when the TC locks up.

At the shop I use chemicals by a company called BG products, I also use their flush machine, which flushes 4 gallons of fluid through the trans to get all the old fluid out of the TC, and every other part of the trans, and then add their conditioner to the fluid and that will solve the shudder problem most times, unless of course there are internal trans problems.

You may want to have a shop you can trust take a look at your truck to rule out any serious problems with the trans, but IMO it's worth taking a shot at servicing the trans and adding friction modifier to it, or doing a google search for "BG find a shop" and find a shop in your area that uses the BG chemicals.

Hope this helps you some.

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To double check it you can also deactivate the OD with the button on the end of the shift lever. The shudder should stop if it's the converter.

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Thanks for the input.

Just went for a drive to town. With the OD button pushed it still shudders.

For what it's worth.... load change with od off 'may' eliminate possibility of missfire and TPS votage varying at most predominant throttle position wear(light cruise) which can trick computer shifting calculations. Most trans mechanics are going to think trans problem, thats where they make their money, need to have 'flight data stream' at shudder looked at to eliminate some possibilities. I have seen bad clutches in the trans intermittently cause output shaft speed to engine load inputs cause the PCM to shift erratically. Also have seen holding brake pedal to eliminate torque converter lock up that hid misfire at light load. Once I had a GM that had slipping clutches, we serviced the trans and pumped all the fluid out via trans cooler. We had removed all the particles in the fluid that caused the clutch friction... left the shop on the hook. A good tech can tell you what it is, look for one with a dyno so the problem can be seen when the shuddering takes place. Sometimes the easy stuff gets overlooked. Please let us know how it goes, problem solving is what makes us mechanics tick. Good Luck.

It's been like this for several years now. Repair probably isn't likely soon but will post up when completed.

2002 Dodge 2500 P/U; 67K mi. Cummins diesel and automatic trans.
Recently, at speeds around 45-55 mph, it will shift in and out of overdrive almost constantly sometimes, other times it will shift normal.
Truck may sit for as much as a month without being cranked; then it may get used for two or three days in a row- approx. 20-50 miles/day, so I'm wondering if something is sticking inside the trans that would cause this, or is the trans fixing to say Adios?
Another concern is after setting for a few days, if you try to take off right after cranking, it feels like the trans is not pressured up, wanting to slip. I generally crank it, then let it idle in neutral for a minute or two, then it acts normal. This characteristic has been since I purchased it used with 54K mi. four years ago.
(It had a fifth wheel setup in the bed, so it undoubtedly did some pulling.)

Thanks in advance.

Is changing the fuel filter on a Suburban a Do-It-Yourself job, or is it something I should have done?

I'm not a big fan of gasoline under high pressure.

What would an estimated charge to do this? $35 bucks? $200 bucks?

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It all depends on the year of the Suburban....most can be done by a DIY'er

There might be a special tool that's needed to remove the fuel line from the filter.

A job like that will likely cost around 75 to 100 bux.

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