Random jerks while driving

I have an 05 Trailblazer EXT 4.2. I bought it salvaged interior burn. I was able to get my interior from one car and then the wiring harness from another car. Since I put the car together untill now I have put on about 25K miles.

Now what is happening is when driving the car around I will get the ABS light and the break light come on for a while then they go off. That has been happening for about 3 months no big deal car is still drivable. About 1 month ago when driving it will just jerk as if you are hitting the gas then letting go (I expail it as your in 2nd gear on a manaul doing 45 stomping and releasing the gas pedal). I took the car to a friend at the dealer and he thinks the issue is the front fuse box.

Anyone have a scematic or wiring diagram of some sorts or something that tells you what each of the wires controls?

Thanks,
Steve

You need an OE based manual for this, either subscirbe to alldata.com online manuals, try e bay or Helms Inc, prints the factory manual.

Random jerks while driving

I see these all the time on I-35. I usually just flip them off and keep on driving. :naughty:

Sorry...couldn't resist.

Please look at the dates before posting, thanks.