2006 Lincoln Navigator Q&A

2006 Lincoln Navigator Question: My truck skips(thumps) when at speed of 60-70MPH, what coult that be from?

When driving at speeds of 60-70mph my truck skips (thumps) and I am not sure if the truck has a timing belt or not or what is causing that... I just had a oil change, air filter replaced and transmission flush... -
Answer 1
Check the rear strut or shock to see if any leak -
Comment 1
Thanks Nguyenk... I will have this checked. Thanks for the follow up. -