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(Post Link) post #1 of 7 Old 21-02-10 Thread Starter
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pull to right under throttle

Hello all,

Having owned a '72 GT Junior, '89 75TS, and '99 156 V6 in the past, I now have a good '97 155TS which would be lovely but for one thing: under acceleration it pulls to the right. The heavier you are with the throttle, the harder it pulls and the more you are steering to the left to compensate. Suffice to say this is diluting the experience somewhat...

I've had it up on ramps and was expecting to see a failed lower arm bush...or something like that, but everything looked intact.

If you have any ideas i'd be sincerely grateful!

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Hi Andy

I have a 155 V6 - I too had the same problem! I cheked the following:-

1. Tyre pressure. (I know this is simple but sometimes a little to much pressure can cause problems)

2. Tracking & Wheel Balance (mine was a little off) - (helped a little)
3. Swapped front wheels from front to back (helped a little)
4. Could be a leaking rubber housing joint near the left wheel. (I had one)
5. I had both front ball joints replaced and this stopped the problem!!!!!

I am not saying any of these ideas will help but its a start!

155 V6 Stage 1 chipped
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(Post Link) post #3 of 7 Old 22-02-10 Thread Starter
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Thanks Lee.

I've done everything on that list apart from the ball joints...so I guess they're next altough there didn't appear to be any play in them. I'll let you now how I get on!

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Don't forget a dragging caliper. As all the bearings torque up it could be draging slightly
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by "on ramps" i figure this means the wheels were still loaded up with the weight of the car. it can make it impossible to notice 'slop' in any worn parts. better to take the load off the wheels, using either a hoist or simple jack/lifter (even just one wheel at a time).

i discovered one of my steering rod ball joints was badly worn, resulting in movement of the right wheel (with the wheel off the ground, it was easy to detect when i grasped the wheel and tried to move it). so the 'toe' changed depending upon what torque was passed to that wheel. the car would pull to the left during acceleration, and return the other way when backing-off.

if the front (lower) wishbones haven't been replaced recently, you might want to change them too. so you will have fresh bushings, and fresh ball joint (not sure which ball joint astay is referring to).

i was frustrated with the car until i replaced the steering rod. made such a big difference to the enjoyment.

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Torque steering is the influence of the engine torque on the steering for some front-wheel drive vehicles. For example, during full acceleration the steering may pull to one side.


Last edited by MARKY155; 22-02-10 at 20:42.
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most likely suspect would have to be the track rod ends, if there is any play in them it will cause it to pull under acceleration, also worth checking tracking if these are ok
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