How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask EricFromCT Your Own Question
EricFromCT, Ford Technician
Category: Ford
Satisfied Customers: 4033
Experience:  20 years dealership exp., ASE A1-A9 L1 L2, Ford Lincoln Mercury Senior Master, Diesel Certified
Type Your Ford Question Here...
EricFromCT is online now
A new question is answered every 9 seconds

Ranger, Edge: Ron, I am trying to glean some info on what

Customer Question

Hi Ron, I am trying to glean some info on what I think is a damaged head gasket on my 2001 Ford Ranger. the check engine light throws a p0304 and a p0402 code and there seems to be a little brown color in my coolant. But it doesn't seem to run rough at all and has power even up hills. I had a mechanic take a look. They did a compression test and said only cylinder 5 was low at 80psi and recommended tearing the whole engine apart to inspect the cylinders for 2,800 bucks. I thought I would get some other advice before taking extreme measures
Submitted: 2 years ago.
Category: Ford
Expert:  EricFromCT replied 2 years ago.
Hi. What engine is in your Ranger? a 3.0?
Customer: replied 2 years ago.
It is a 3.0 and just for further info I just drove it a short distance and noticed the check engine light went off
Expert:  EricFromCT replied 2 years ago.
Ok. The brown in the coolant could be normal if the coolant has not been replaced recently. A lot of times you can rev the engine and see bubbles coming back into the overflow if the headgasket is blown.
Expert:  EricFromCT replied 2 years ago.
Have you tried to replace anything yet to fix the p0304, cylinder 4 misfire?
Customer: replied 2 years ago.
No I haven't done anything yet
Expert:  EricFromCT replied 2 years ago.
The 3.0 is known for having some valve problems. If it was low on compression on a cylinder a cylinder leak test should be performed. If you are testing for headgaskets a block tester can be used in the cooling system to check for exhaust gasses. Thanks.
Expert:  EricFromCT replied 2 years ago.
Thank you for viewing my response. Do you have any more questions? Thank you and please remember to rate the service provided.