i got 0304 0908 0103. kncok sensor and 2 engin coolant temp. snesor. now what is it and where is it. is it hard to replace. any help would be welcomed

 

if the knock sensor is gone its about $100 just for the sensor. Replacing it can get greusome (sp?). The sensor is under the intake manifold, screwed into the middle of the block. You can replace it the easy but bloody way, by sticking you hand with a socket/ratchet in the hole, near the throttle body, and removing it. Or you could do as many repair manuals recommend, take out the whole intake madifold, which is really really time consuming and pointless. The coolant temp sensor is by the big radiator hose near the battery. Probly no biggie to replace either, but I wouldn't know off hand. There may be other coolant sensor too, I don't really know.

 

well i already knew about the knock sensor i was wondering more about the engine coolant sensor