I am getting an error code that Cylinder #5 is misfiring, but I am also having a issue that when I turn on the heater this smelly smoke comes out. it kinda has an oily residue. Do you suppose they are related. I have a hunch I am dealing with two separate issues. I am more concerned about getting the heater issue fixed first, than a rough idle. I cant defog my windshield and its colder than a witches tit.

__________________
Chicks who like to wrench

I'm pretty sure your heater core has failed and sprung a leak. What year truck?

__________________
1995 Ranger XLT 3.0L OBDII
Trans: A4LD (E) 2WD
Rear: 7.5 / 3.45 NL LHD
Tires:GY P235 75/R15 (orig 225 70/R14)
Long Bed, 20 Gal Tank
Up to 229,900 miles

2008

__________________
Chicks who like to wrench

Unless something has changed in the 2008 model, I think you'll have to remove the dash to effectively replace the heater core. I've only had to do it a dozen times through the years on different makes and models.

__________________
1995 Ranger XLT 3.0L OBDII
Trans: A4LD (E) 2WD
Rear: 7.5 / 3.45 NL LHD
Tires:GY P235 75/R15 (orig 225 70/R14)
Long Bed, 20 Gal Tank
Up to 229,900 miles

Your heater core issue if you need to pull it isnt as bad as it sounds. Done a few myself over random vehicles, some easier than others.


As for your misfire, is the CEL on? And if so, what soft or hard codes have you pulled?

__________________
_______________________

My Build Pg. Threads
+ 93' Ranger Overlanding Build
+ 94' Ranger Bed Overlanding Trailer Build
+ 12° North Industries ~ I Support

CEL on. I dont have a very good OBD reader, but here is a portion of what I got:


Vehicle VIN: 1FTYR44UX8PA07456
Vehicle Manufacturer: Ford
Vehicle Calibration ID: PYFK0AC.HEX

MID:$3a TID:$80
- EVAP Monitor (cap off)
Test incomplete or dependant test failed
--
MID:$3a TID:$81
- EVAP Monitor (cap off)
Test incomplete or dependant test failed
--
MID:$3a TID:$82
- EVAP Monitor (cap off)
Test incomplete or dependant test failed
--
MID:$3b TID:$80
- EVAP Monitor (0.090")
Max: 946.5Pa Min: -8,192Pa
Test result value: 202Pa
PASS

MID:$a1 TID:$82
- Misfire Monitor General Data
Max: 24.70289% Min: 0%
Test result value: 25.16527%
FAIL
----
MID:$a1 TID:$83
- Misfire Monitor General Data
Max: 0.99953% Min: 0%
Test result value: 9.43221%
FAIL

__________________
Chicks who like to wrench

For the sake of time savings, Hit up an Autistic zone or O'really's and have them perform a quick scan for the right codes. Some of those values are jibberish to me where knowing certain codes and how they fall are more helpful. At least through that its easier to find starting points to test possible failing components in educated guesses even of what sensor is being tripped vs one that is failing.

Someone here might be able to make a judgement call on whats there but, I either need to have OBD II codes to work with or be hands on.

They should still be doing it for free too and if you can get codes I could help better.

What you have up there looks more like values from a scanner that shows you working data as if you were driving the vehicle for diagnostics troubleshooting.

__________________
_______________________

My Build Pg. Threads
+ 93' Ranger Overlanding Build
+ 94' Ranger Bed Overlanding Trailer Build
+ 12° North Industries ~ I Support

As for the original question, probably not related. I would work on the miss first, could be as easy as a plug wire might be as complicated as head gasket. Depending on the complication the heater fix could be a waste of time

__________________
00 XLT 4WD XCSB 4.0 my new baby
00 XLT 2WD RCSB 5.0 swap in progress.
98 XLT 4WD XCSB 4.0 dead
99 EXPO donor motor for dead one and parts for the others.
Newest Ranger Forum