[zpmada]

Car: 99 S70 base automatic with 136,000 miles

So I had all 4 shocks/struts replaced on my car along with 4 lowering springs, and both rear brake pads. I still need to get the inner tie rod ends along with sway bar links replaced so I didn't align the car yet. After this service, the traction control and ABS light may randomly come on (once every couple days - I drive about 100 miles a day).

Sometimes the check engine light comes on at the same time. If I shut the car off and restart, the ABS and tracs light are off next time I turn it on, and the check engine light has a 50% chance of being off. I found this odd because it can take a few hundred miles for the check engine light to run another test to shut itself off.

I tried to get the code but nobody wanted to do it yesterday (rained). The lights are all off now so I don't think a code will show up. I was curious if any of this could be related to my new suspension/brake pads? Rarely every once in a while I get a vibration in my brake pedal along with a sound for a second or two during low speed braking and loose some brake power. This seems to occur a little more frequently after the car was lowered.

I'm trying to see if there is something loose on the hub that could be causing all these problems. Would an incorrectly installed ABS sensor cause a check engine light along with random brake pedal vibration during low speed braking? I'm fairly sure that would cause the ABS / Tracs light. The pedal vibration only occurs during low speeds.

Modified by zpmada at 8:50 AM 6-21-2009

 

[JRL]

Re: Traction control, ABS and check engine light - linked in any way? (zpmada)

They are all tied together.
On a 99 -newer you can (not always necessarily) get a CEL when you get the ABS/tracs/STC light.
If the light coming and going, it's at the beginning of the failure.
Just rebuild it at either;
http://www.modulemaster.com
or
http://home.earthlink.net/~vicrocha/
cheap enough to do and be done with it.

Probably a coincidence but before you yank it out, check to see if whoever did the work messed up an ABS wheel sensor.
A loose axle can cause this but they should not have been around that oh and BTW, you're KILLING your tire wear by not aligning it.
Your alignment is totally messed up from strut replacement

 

[[email protected]]

Re: Traction control, ABS and check engine light - linked in any way? (zpmada)

Quote, originally posted by zpmada »

Car: 99 S70 base automatic with 136,000 miles Sometimes the check engine light comes on at the same time. If I shut the car off and restart, the ABS and tracs light are off next time I turn it on, and the check engine light has a 50% chance of being off. I found this odd because it can take a few hundred miles for the check engine light to run another test to shut itself off. Modified by zpmada at 8:50 AM 6-21-2009

I found this on VS: "Sometimes your key won't snap back to the run position fully which will cause the lights to stay on. Next time it happens try turning your key back (towards the off position) just a touch and the lights may go off."

This is the link to the discussion. It may or may not be helpful information. -Wm.

http://volvospeed.com/vs_forum...99965