hello all and happy holidays sometime back i got a skip in my 03 Disco 160,000 miles as i was not near home i pulled into Auto Zone and they said 02 sensors upstream replaced no joy pulled plug looked good replaced and replaced plug wire with 8mm truck has new coils 12 months ago Cleaned MAF and throttle body and replaced a couple of vacuum lines including one to secondary airpump so i am down to doing a leakdown check and as i need to buy gauges any suggestions or other ideas here? Thanks

 

#7 is right next to the water jacket

 

good morning having it towed in next few days...do you think doing a leak down check will show the problem? checking out the OTC testing equip....are you familiar with that one? have a good day

 

leak down test would show, a simply cooling system pressure test might not hurt first.

 

Thanks will start with that truck has been very good to me no probs till this