Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: My oil tank cap has thick yellowish sludge and after having the oil changed its on 2001 Ford Expedition

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
still building up and now she's having trouble starting (2-3days later). Now I've notice white smoke and she's driving a little rough. The check engine light is on and I was told she's misfiring. What work should be done?? First I was told a major tuneup and now a valve job.... Not to mention almost 2yrs ago the engine was replaced and oil changes had been maintained.
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
it sounds like it has overheated and you are mixing coolant and oil. have a leak down test to check the cooling system first before doing anything.

Roy
Okay thank you I will ask for the test. Will a leak down test detect a cracked or leaking head gasket and comfirm the need of a valve job? And can you tell me if valves 3&4 are "misfiring" would that mean a valve job should be done? Costing more than $2,500.00 or is that fair?

Thanks again I wish I had your knowledge or Oprah's bank balance. AB
yes, this test will confirm a head issue and yes, it could also be the missfire code.

2500 sounds like a good starting price.

Roy
check the warranty on the engine replacement ,seems like the engine was overheated and caused damage to the head or head gasket ,inspection needed
Find Out Why Your Check Engine Light Is On
Didn't find what you were looking for?