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1998 GMC Jimmy Fuel Injector Spider Unit Bracket replacement

Tiny
ROYCAR71
  • MEMBER
  • 1998 GMC JIMMY
  • 4.6L
  • 2WD
  • AUTOMATIC
  • 154,200 MILES
I replacing my central port spider injector unit for a standard port unit are the brackets compatible as for anything else that might be a issue? Thanks.
Saturday, June 13th, 2015 AT 5:54 AM

9 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
That engine never came with standard port injection unless you are talking about tbi. I or anyone else here would have no idea about the brackets unless we actually saw it or have done that switch
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Saturday, June 13th, 2015 AT 11:57 AM
Tiny
ROYCAR71
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  • 354 POSTS
I was referring to the spider unit with the injectors are connected to there is the CFI version and there's also a upgraded version they're both still like spiders. Sorry for the confusion.
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Sunday, June 14th, 2015 AT 4:00 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Your pic didn't' come through but if you still haven't done it yet use the upgraded version of the spider unit. It has different poppet valves on it everything else should work ok. Make sure to replace the o rings as well.
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Monday, June 15th, 2015 AT 6:47 AM
Tiny
ROYCAR71
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  • 354 POSTS
Do you mean gaskets for plenum, throttle body, and top of spiders?
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Friday, June 19th, 2015 AT 12:12 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Yes gaskets they are o rings but replace them as well.
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Friday, June 19th, 2015 AT 12:47 PM
Tiny
ROYCAR71
  • MEMBER
  • 354 POSTS
Thank you
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Friday, June 19th, 2015 AT 1:18 PM
Tiny
ROYCAR71
  • MEMBER
  • 354 POSTS
Another concern to know, I heard that once you put the poppit in for the new injector unit that you can take them out. Is that true?
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Wednesday, June 24th, 2015 AT 1:12 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Only if you want to pay for new lines and poppets. Why would you
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Sunday, June 28th, 2015 AT 4:48 PM
Tiny
ROYCAR71
  • MEMBER
  • 354 POSTS
Sorry for confusion, the poppets for the new unit does come out if I did accidentally put the wrong one in. The car runs better thank you.
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Friday, July 3rd, 2015 AT 9:46 PM

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