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Backfiring thru the throttle body and more

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Old Jun 25, 2012 | 03:19 PM
  #11  
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So whats wrong with 125 ?
 
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Old Jun 25, 2012 | 03:25 PM
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go buy yourself a new temperature sensor/sender.. the one that transmits to the PCM, not the gauge..

or...

i'm not familiar with 95's.. are the sensors the same? can he flop them?

if not, buy a new one like OE.. swap it, see what happens. they aren't expensive..

125 is pretty reasonable.. 'specially for a 95...
 
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Old Jun 25, 2012 | 06:18 PM
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Yeah id say thats good news. The motor is good something else is effecting the performance. How many miles does it have? Have you changed the timing chain? The factory ones are **** to stretch.
 
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Old Jun 25, 2012 | 09:09 PM
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Yea 125 is great and I put a new timing set it saturday and it fixed it most of the way but I think I found the problem ill let you guys know friday or saturday what I find out thx for the info
 
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Old Jun 27, 2012 | 07:24 PM
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Ok I thought it was the oil drive gear or bushing so I changed those and no change so I'm even more clueless now maybe wiring?
 
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Old Jun 27, 2012 | 09:39 PM
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Since you had the dist out, you need to get fuel sync reset. Need a scan tool that can read it. If you don't have one, take it to a shop and have it set. Shouldn't be more than an hour labor.
 
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Old Jun 27, 2012 | 10:26 PM
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yeah i second that. I did not see that he pulled the distributor. Also when you did the timing set you were very careful not to move anything once you had the chain off correct?
 
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Old Jun 28, 2012 | 07:17 AM
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I work at miracle chrysler dodge jeep in gallatin tn I used our drb2 scan tool and set sync and no when I done the timing chain I didnt move anything but I have no idea whats wrong with it
 
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Old Jun 28, 2012 | 08:18 AM
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being a '95 limits your ability to pull full data from the PCM.. that's a shame.. but..

can you pull temperature? If you can, observe the temperature the PCM thinks the truck is running at.. there are two sensors on your rig.. one is for the dash, the other is for the PCM exclusively..

If it thinks it is hotter than it is, it will pull a lot of fuel, which will make you stupid lean.. if it thinks it's cooler than it is, it will dump fuel which will make you stupid rich- which sometimes causes backfiring..

I saw where you said you put new gaskets on it upper and lower, several sensors, set sync and changed timing chains.. dizzy.. all that.. that temperature sensor also plays a vital role in trim.. It isn't expensive.. give it a shot..
 
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Old Jun 28, 2012 | 11:56 AM
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Yea I actually have replaces those also because the pcm was saying it was -32 degrees and now at full running temp it says 195.8 which it has a 195degree thermostat im lost im going to try a new crank sensor see what happens after that ill probably sell it I have no idea other than that
 
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