2002 Ranger Missing Badly All Of A Sudden
#1
2002 Ranger Missing Badly All Of A Sudden
2002 Ford Ranger 3.0 (Not Flex Fuel) 91k miles. Ran fine today. all of a sudden started missing really bad. Took each plug wire off to make sure I was getting spark to all 6 cylinders. Tested ok. Replaced plugs anyway. No help. Took to local parts house and had codes extracted. They were: P0301 (#1 Cyl misfire), P0302 (#2 Cyl misfire), P0113 (IAT Circuit), and P0122 (Tp sensor). Not sure where to start. Did it jump time? Not backfiring. Just DEAD miss.
Last edited by hz36t5; 01-09-2008 at 05:46 AM.
#7
I had a similar problem on my 01 just a couple weeks ago - mine just showed up one unannounced too.
My code was just a misfire on cylinder 2. The issue was a bad coil pack. The coil pack would have a very small arc between the connecting "cup" thing on the coil pack itself for cylinder 2 and the wiring harness plastic covering piece. Freaking hard to describe without a picture... but anyway. It was the coil pack for me.
Check the usual stuff: plugs, plug wires, make sure all your sensors are connected properly (mine shook loose a few miles down the road), especially the one on the back of the coil pack.
after that you gotta move on to the o2 sensors & injectors i would say.
My code was just a misfire on cylinder 2. The issue was a bad coil pack. The coil pack would have a very small arc between the connecting "cup" thing on the coil pack itself for cylinder 2 and the wiring harness plastic covering piece. Freaking hard to describe without a picture... but anyway. It was the coil pack for me.
Check the usual stuff: plugs, plug wires, make sure all your sensors are connected properly (mine shook loose a few miles down the road), especially the one on the back of the coil pack.
after that you gotta move on to the o2 sensors & injectors i would say.
#8
Okay. here is an update. I took off each valve pan. All rockers are working. When listening to the engine, there is a noise like a valve rattling. VERY loud when in the truck or behind it. Not so bad when you are in front of the truck or under the hood. I also noticed that the catalyc converter for the 4,5,6 side is cherry red after it idles for about 10 minutes. Do I have bad tiniing chain/belt?
Also just to let you know, I cleared the codes by disconnecting the battery and turning on the headlight switch. After driving the truck for about 15 minutes, no check engine light. Cannot get a check engine light now.
Also just to let you know, I cleared the codes by disconnecting the battery and turning on the headlight switch. After driving the truck for about 15 minutes, no check engine light. Cannot get a check engine light now.
#9
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sounds like you have a injector sticking open.
the converter glowing red is due to to much raw unburned fuel entering it.
if left this was you will also need a new converter.
you did install new plugs right ? try a set of wires or swapping a wire from the misfiring cylinder to another and see if the misfire follows it.
if that fails try unplugging the injectors on bank 2 one at a time and see if the noise stops
the converter glowing red is due to to much raw unburned fuel entering it.
if left this was you will also need a new converter.
you did install new plugs right ? try a set of wires or swapping a wire from the misfiring cylinder to another and see if the misfire follows it.
if that fails try unplugging the injectors on bank 2 one at a time and see if the noise stops
#10
Wires are right. Did the plugs one at a time. It's not an injector noise. This is way too loud for that. It's either the timing chain hitting the cover, bad lifter, out of time to the point that the valves are knocking, or maybe even deeper in the engine than that.
Could timing chain get so loose that it slaps the cover? Would this cause all the problems? Like I said, the engine has a DEAD miss. And after I clered the check engine codes, I dont have a check engine light any longer. Not sure what to do next. Not sure if it's timing or not.
Would I be better off to take the truck to a local dealer and have some kind of diags ran to tell me exactly what the problem is?
Could timing chain get so loose that it slaps the cover? Would this cause all the problems? Like I said, the engine has a DEAD miss. And after I clered the check engine codes, I dont have a check engine light any longer. Not sure what to do next. Not sure if it's timing or not.
Would I be better off to take the truck to a local dealer and have some kind of diags ran to tell me exactly what the problem is?
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