Ok my truck wanders at 50mph & higher. I have replaced steering box which was bad. I replaced my upper & lower ball joints with greasable ones, tie rod ends, steering control arm. Front end alignment done and re-checked. The front & Rear bushings have been checked, the steering box tightened. My truck still wanders and also at lower local street driving speeds I am constantly having to re-adjust steering for curves and bumps in road . the steering doesn't seem to return to center. I have to turn wheel and seems to over compensate when I do.
Also the steering pump was flushed and some residue was found. Does anyone think Steering pump may be bad. I have no squealing......Help

 

How many miles on the vehicle?

 

Not returning to center and wandering are signs you don't have enough caster.Do you have the #s from your alignment?I would think the mech. would have caught that though.Any lift on the truck?The over compensating sounds like something loose-either fr or rr.

Brian

 

The caster is 2.7...Which is mid -range of the 1.5 to 5.5 range. Had that checked three times. Has everything in rear checked, springs, bushings

 

Truck only has 35,000 original miles

 

Man, it sounds like you've covered everything. My next thought would be maybe the tires? You could try your spare or some loaners to see.

Brian

 

Swapped tires around. I am thinking of new steering pump and Hellwig sway bar

 

have you replaced the steering stabilizer?

 

You have spring wrap. All X's suffer from it to a certain extent.

Good luck.

 

Do a search for " excursion spring wrap". I tried to post a link to an article but I guess it has to be approved or something so maybe it will show up later. Spring wrap on X's is quite common and is probably the cause.

Sent you a PM with a link for you to check out since the forum won't let me post a link.

 

What M sent you was a link to LandYot's radius rod stuff, I'm guessing. And he is right. I have a 2005 EX that wandered from day one, until the RR installed. I already had put high-pressure Bilsteins and a heavy-duty Steering Stabilizer, and I already had Front AND rear swaybars.

The *single* most important mod for handling on an Ex is a set of Radius rods. (unless you run an airbag suspension)

This has been beat to death on many boards, and you can (should!) read it all before you buy...

...BTW I had to make a very quick run from my home in Laguna Hills (coastal Orange County California) out to Pearblossom (High desert) Friday. I drove a considerable amount of the distance just under the speed-limiter, on my GPS about 105 mph. (I have 34" tires that fools the 99mph speed sensor)

Below the Cajon Pass was an area with gusty 40 mph cross-winds, with big warning signs saying that 'High Profile" vehicles were NOT RECOMMENDED for travel. I never even noticed, no hands, no prob. Rock-solid the whole way.


_____________________
Quietman
www.roenation.com
2005 EXCURSION LIMITED Eddie Bauer edition 4X4 PSD
4" FabTech lift/level, Bilstein mono-gas shocks, Rancho Steering Stabilizer
Silverstars, BFG 295/75/16 AT KO's on Factory Mags
LANDYOT Generation II Radius Rods, Ford factory hood insulator

 

Yep, I sent a link to an article written by landyot explaining the whole spring wrap thing. Excellent article to read.

 

Ah kneww it!

There should be a "sticky" post at the top of every Excursion forum on the web linked to that little article...

...seriously it would quite literally save lives, and TONS of wasted money effort and confusion...

_____________________
Quietman
www.roenation.com
2005 EXCURSION LIMITED Eddie Bauer edition 4X4 PSD
4" FabTech lift/level, Bilstein mono-gas shocks, Rancho Steering Stabilizer
Silverstars, BFG 295/75/16 AT KO's on Factory Mags
LANDYOT Generation II Radius Rods, Ford factory hood insulator

 

Yes i have replaced my steering stabilizer. I read the article many times and thank you. My problems don't completely match Landyots explaination. I probably will someday buy them