2003 instability at highway speeds | Ford Thunderbird club group 1955-2005 T-Bird models

2003 instability at highway speeds

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743pm

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Thunderbird Year
2003
Hello, i’m having a problem that i hope someone can help with: after upper control arms, tierod ends, rear struts, rear lower control arms, & steering rack, my bird is a little squirrely on the highway. Whats really odd is that is mostly on deceleration. When i take my foot off the gas the car veers right, and is fine when i get back on the throttle.
Has anyone experienced this?
Thx!

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tie rod ends? what psi are you running your tires? mine does that a little if there is too much air in the tires, the car (2004) calls for 30 psi, that's fine for normal driving and ride, but I run 33, because it's more reactive over 100
 
743pm said:
Hello, i’m having a problem that i hope someone can help with: after upper control arms, tierod ends, rear struts, rear lower control arms, & steering rack, my bird is a little squirrely on the highway. Whats really odd is that is mostly on deceleration. When i take my foot off the gas the car veers right, and is fine when i get back on the throttle.
Has anyone experienced this?
Thx!
Click to expand...
Get the wheel alignment checked again. I had an Alfa Romeo get an alignment done, got all squirrelly at the back, especially if hitting bumps. The tire wear was showing weird pattern too. I checked the rear wheel toe in myself, with a tape measure and there was about 5 mm toe in, way too much do adjusted it out to 1mm toe in and all good now.
 
743pm said:
after upper control arms, tierod ends, rear struts, rear lower control arms, & steering rack, my bird is a little squirrely on the highway.
Click to expand...
What does this mean? After what?
 
I’ll take a look, but its been in for alignment 4x at 3 different shops. All 3 would have to have missed it.
Since it happens in relation to the gas pedal operation, it feels like its electronic, FEM or something?
 
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