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Frustrated over injector swap

Old Oct 24, 2012 | 08:06 AM
  #1  
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From: Poulsbo, Wa
Year: 1991
Model: Cherokee
Engine: 4.0 HO
Default Frustrated over injector swap

So I got a set of Bosch F78E-A4A form an eBay seller that said they were an upgrade for the 91cherokee 4.0. I assumed these were the ford #19 yellow sticks but now I'm not so sure. I have searched till I was blue in the face and cant find the flow rate for these to make sure they work. So are these the#19 or are they different and has anyone run these or have anymore info on them. The numbers stamped on them are F78E-A4A and 9F593 on the other I just need their old pressure rating and their static flow so I can do the conversion. Any info will help thanks.
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Old Oct 24, 2012 | 08:10 AM
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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That does look like a Ford part number, but other than that I'm not sure.
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Old Oct 24, 2012 | 09:28 AM
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Year: 1991
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I read that they were from a 98 Ford mustang 4.6 on a website but when I tried to look it up by searching 98 Ford mustang injectors nothing came up..
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Old Oct 24, 2012 | 09:59 AM
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Year: 1988
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Post a pic!
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Old Oct 24, 2012 | 10:22 AM
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From: college station
Year: 1988
Model: Comanche
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Who was the seller?
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Old Oct 24, 2012 | 10:26 AM
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From: Poulsbo, Wa
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http://www.ebay.com/itm/281002241553...84.m1497.l2649

here is the link to them not at home to get pics...
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Old Oct 24, 2012 | 10:56 AM
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From: DE
Year: 1988
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I know that I have the ford 19s and mine look like these, i'm not sure what those are
Attached Thumbnails Frustrated over injector swap-wp_000815.jpg  
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Old Oct 24, 2012 | 11:04 AM
  #8  
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well crap....
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Old Oct 24, 2012 | 11:06 AM
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From: Red Lion, PA
Year: 1991
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I have the ford 19lb injectors in my jeep and they look exactially like the ones he bought. Part number also sounds the same but my jeep is almost 3 hours away so i cant really confirm that.
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Old Oct 24, 2012 | 11:12 AM
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Year: '99 and '91
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I'm not sure of the part # but a while back I bought 4-hole ford injectors off eBay, they looked similar to the ones you posted. I bought them without much research because at first I thought they were Chrysler ones, and I got em for $50.

They worked fine. Still in there.

I'm going by my dads later I'll check the numbers on them, they're a little rusty though lol.
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Old Oct 24, 2012 | 11:15 AM
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From: Poulsbo, Wa
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Jeep19xj91 are you talking about my injectors?
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Old Oct 24, 2012 | 12:31 PM
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So it looks like we both have the ford 19s just different versions, I have the explorer version whereas you have the mustang ones. Hope this helps
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Old Oct 24, 2012 | 02:05 PM
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From: Poulsbo, Wa
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I hope it will still fit. What's the flow rate for the #19?
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Old Oct 24, 2012 | 02:09 PM
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19lbs/hr i believe, hence ford 19
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Old Oct 24, 2012 | 02:14 PM
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From: Poulsbo, Wa
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yah but I need the CC/m and what psi they are designed for to figure out what the new flow rate will be.
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