1996 FORD RANGER 4.0 V6 HAVE CODES P0306 AND P0174 NEED SOME ADVICE PLEASE

  • Tiny
  • PCMentor29
  • 1996 Ford Ranger
  • 180,000 miles

P0306 Cylinder 6 Misfire Detected and P0174 System too Lean (Bank 2)

I think I should check next the intake gasket but I need some help with the type of test. Using starting fluid or propane I just can't seem to hear engine changes. Is there some trick to doing vacuum leak checks this way?

Should I try spraying water? Hard to see under the plenum. Should I try to make a smoke machine from a Party smoke machine $29? Would a smoke machine show an intake manfold gasket leak?

Cylider six is in Bank two on the engine.

Compression of Cyl6 is 180, good. Plug wire measures correct ohms. New spark plug. Injector connector passed noid test. I am wanting to try the intake troubleshoot before I replace injector 6. Also the spark plug #6 looked wet after the motor ran a little. There is no vacuum in the crankcase when running so no internal leak.

Any advice you can give would be great. Thanks.

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Sunday, June 24th, 2012 AT 6:45 AM

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  • Tiny
  • saturntech9
  • Expert
  • 29,480 posts

You can use a party smoke machine but you need a fish pump to pressurize the smoke. You would have to get a 5 gallon plastic bucket with lid. Remove the filter from the fish pump place the pump into the bottom of the bucket. Cut a hole for the plug then seal around the plug. Then cut a hole for the nozzle of the smoke machine nozzel to feed smoke into the bucket. Then seal the bucket where the nozzel goes in. Put the lid on and start the pump and smoke machine up. You can find all kinds of things with smoke oil leaks blow by vacuum leaks even a leaking intake gasket.

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Sunday, June 24th, 2012 AT 6:55 AM
  • Tiny
  • PCMentor29
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Thanks for the smoke device guide, I think I will try it.

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Sunday, June 24th, 2012 AT 8:59 AM
  • Tiny
  • PCMentor29
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Can you tell me do I take the output of the fish pump through the bucket wall and connect to the plenum on the car? So the smoke is pumped by the fish pump? Should I get the Fog machine for $39 or $69?

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Sunday, June 24th, 2012 AT 9:45 AM
  • Tiny
  • saturntech9
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Yes you put the outtlet of the fish pump thru the bucket forgot to mention that.I would probablly get a 700 watt machine pump the smoke into the brake booster hose without the check valve on it.

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Sunday, June 24th, 2012 AT 9:59 AM
  • Tiny
  • PCMentor29
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It's between fog machines Chauvet h1100, h900, or h700. I would pick the h700 but the specs say it's only 450 watts. By 700 wats did you mean the h700 would be adequate? Thanks

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Sunday, June 24th, 2012 AT 10:24 AM
  • Tiny
  • PCMentor29
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Which fish pump sounds good to you? Tetra 77854 Whisper Air Pump, 60-Gallon, or the 40 gallon, or the 10 gal, or even the 100 gal?

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Sunday, June 24th, 2012 AT 10:27 AM
  • Tiny
  • PCMentor29
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The three models watts are h1100=700 watts, h900 and h700 both are 400watts. Please let me know. Thanks

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Sunday, June 24th, 2012 AT 10:35 AM
  • Tiny
  • PCMentor29
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The output of them is: h700 Output: 1,500cfm, h900 4500 cfm, h1100 is 8000cfm. Thanks for helping me with this.

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Sunday, June 24th, 2012 AT 10:40 AM
  • Tiny
  • saturntech9
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The higher output of each one get the better it will work it all depends on how much you want to spend on your machine.I would atleast go middle of the road on each one.

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Sunday, June 24th, 2012 AT 3:58 PM
  • Tiny
  • PCMentor29
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I ordered middle of the road fog and pump. I saw the Smoke Pro and the can is a lot smaller than a 5 gallon bucket. Could I use a smaller bucket? I have a two gal metal bucket that seals tight. I was thinking of making a wooden rack to put this assembly into. Maybe on wheels.

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Tuesday, June 26th, 2012 AT 9:05 AM

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