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2001 Ford Ranger Rough Idea

Tiny
OCHOAS MOBILE
  • MEMBER
  • 2001 FORD RANGER
  • 2.5L
  • 4 CYL
  • 2WD
  • MANUAL
  • 174,636 MILES
Truck starts engine runs fine hit throttle engine runs rough for a few seconds then returns to normal ideal. Changed plugs, wires checked coils and changed Iacv. Had code for #2 cyl misfire but that takes forever to duplicate. I think code comes on per the rough idea thinking injector?
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Thursday, November 20th, 2014 AT 4:22 PM

6 Replies

Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
Try testing the throttle position sensor, Cleaning throttle body, and check MAF sensor.
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Thursday, November 20th, 2014 AT 4:41 PM
Tiny
OCHOAS MOBILE
  • MEMBER
  • 4 POSTS
Yea was looking for specs on mad and tps but couldn't find it on web and autozone didn't have them. I did clean mag with a maf cleaner but no change ran com on it and the maf was around 54 and tps at 20 the only thing I seen on ho2 bank 1was 700 to 30 and bank 2 stayed higher 800 to 100. I'm thinking they should be about same voltage. And thank you for helping me. Appreciate it.
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Thursday, November 20th, 2014 AT 5:42 PM
Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
Try running some fuel cleaner through to see if it clears up at all (seafoam or lucas is good). Can you do a fuel pressure test?
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Friday, November 21st, 2014 AT 6:48 AM
Tiny
OCHOAS MOBILE
  • MEMBER
  • 4 POSTS
Hello put 2 types of sea foam in. 1 in crankcase and fuel tank and the other in the throttle body. Got 2 codes after burning up the stuff in the throttle body. One for bank 1 ho2 but I assume is because of cleaning the other was for p1401 DPFE sensor, so replacing. I'll let you know how that goes.
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Sunday, November 23rd, 2014 AT 1:31 PM
Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
Ok, sounds good.
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Tuesday, November 25th, 2014 AT 10:33 AM
Tiny
OCHOAS MOBILE
  • MEMBER
  • 4 POSTS
Well I replaced DPFE and still has same issue but engine seems smoother and idel is not as bad but still shakes after pressing gas and then smoothed out. I have not replaced bank 1sensor 1 ho2 yet. Bank 1 and 2 are different volts 1 fluctuations are spurs tic and drop to 60 and 2 is more consistent. When I've done other cars they usually are around same volts. Would like your input on this. Thinking fuel injector bad but it's not giving me a misfire code any more for 2 cyl. Or can it be valves? I'm lost at this point.
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Tuesday, November 25th, 2014 AT 12:23 PM

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