Pony Boy
Member
- Joined
- Apr 21, 2009
- Messages
- 31
- Reaction score
- 2
- Points
- 8
- Vehicle Year
- 1995
- Make / Model
- Ford
- Engine Size
- 5.0
- Transmission
- Automatic
2010 Ford Ranger extended cab, auto, 2wd, 75,000ish miles, 235/75/15 tires. Over the last year and a half it's started pinging at high rpms. At first it was no big deal. I had an EGR code, I can't remember exactly what it was, but I believe it was PO400. I cleared the code once and it never came back. The pinging began to get worse, and I started noticing a loss of power, basically right now the Ranger won't go over 74MPH, I couldn't even drive the interstate with it. It used to cruise fine, so I started digging into it. Replaced fuel filter, spark plugs, and wires. No change, spark plugs look normal. Fuel pressure is at 65 PSI engine running. Removed EGR valve from the rear of the engine ( what a job that was...), it was perfectly clean, I was expecting to find alot of carbon buildup like my old Lima 2.3 used to get. Air filter and MAF are clean. I'd heard that the timing chain tensioner has a tendency to break on occasion once and a while causing similar symptoms, so I've just finished removing the timing cover and inspecting that, the tensioner is perfectly fine, locks in place as it's supposed to, and has plenty of travel left. Retime the engine since the crank pulley had to come off, and still no change. I did a cylinder contribution test with the Solus scanner I have available, it showed cylinder 3 being weak. The results were
Cylinder #1 "5"
Cylinder #2 "3"
Cylinder #3 "-9"
Cylinder #4 "3"
I'm at a loss what could be causing the issue. There are no codes, pending or otherwise. When I step on the gas it revs but just doesn't go, like something's holding the engine back. I need a good compression tester to check compression as that's the only thing left I can think of. Has anyone had any similar issues? Point me in a direction!
Cylinder #1 "5"
Cylinder #2 "3"
Cylinder #3 "-9"
Cylinder #4 "3"
I'm at a loss what could be causing the issue. There are no codes, pending or otherwise. When I step on the gas it revs but just doesn't go, like something's holding the engine back. I need a good compression tester to check compression as that's the only thing left I can think of. Has anyone had any similar issues? Point me in a direction!