Hi again! I am having an issue where my 01 disco 2 is bucking a bit and stuttering when I accelerate, mostly when I am going up hill. Changed plugs, filter, MAF cleaned all about 7 months ago. New oil, Tranny flter and fluid all about 2 months ago. Not sure what it is. The check engine light is on, and I am going to take it in to Advance or AZ and see what the code(s) might be, and report back. But in the mean time, I wanted to see if anyone else had this issue and what potential remedies there might be. I am going to put new wires in it soon too, but have not had time. I am half way through a new tank of gas and it has been doing fine until now. So, bad gas? Fouled plug maybe? Again, it seems to be mostly gentle acceleration going up a hill, but never at idle.

Any thoughts or help are ALWAYS appreciated. You guys are wonderful!

K

 

fuel filter

 

I thought I remember seeing that the fuel filter is a non serviceable item on the 01 disco 2? Hmm.. If it is, then I will be glad to replace it.

Thank you for the input.

Any other suggestions or thoughts?

 

Check your codes. Could be a bad plug wire which would probably show up as misfire code. Check all your vacuum lines.

 

you are correct the fuel filter is a sock in the gas tank.
if replacing wire got to Kingsborne's web site. great wire at unbelievable prices get the 8mm wires.

 

I am really only guessing without the trouble codes to work with but if I had to guess then I would probably say you are going to find misfire and/or lean codes. So since you already changed the plugs, and MAF then I would do the following next:

1) Get us the codes

2) buy new 8mm wires

3) Smoke test for Vacuum Leaks. I made a thread on "how to smoke test with a cigar" that might help out, just search for it.

4) Do a Fuel pressure test- You need to connect a fuel pressure gauge to the schrader valve on the back of the fuel rail. You should have around 52PSI if you pump is good.

"Fuel pressure is maintained at a constant 3.5 bar (52 lbf.in

a regulator that is integral with the fuel pump."