XAlent

Check the small black hose going to the MAP filter and MAP sensor at back of manifold. Make sure the filter isn't cracked either

Unfortunately so far the only way is to convert to a 3 knob climate control and then use aftermarket head unit, or do the wiring conversion for a 3 knob climate control and then go full Tesla style unit.

So when slowing down, it doesn't happen instantly or every time. Around I'd say 15-20mph you can hear a muffled bang bang bang and feel the shudder through the steering wheel. It's loud enough and apparent enough that my boy can hear it from the...

Thanks once again for your very comprehensive reply! This was more a way to exclude one part of the system (out of frustration) that I could do quite quickly and easily. I agree that the old ones were probably still OK I wanted to disable the...

@2001LC I've tried a few more things. Retightened both front wheel bearings, replaced rear ABS sensors (all have been changed now) and checked (unplugged and replugged) all abs ecu plugs I did the "Pump brake pedal rapidly. See how many pumps...