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Old 05-21-2012, 06:18 PM
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Chevy fuel injection systems

Looking into getting another tahoe. Looking at a 1998 or 99. What kind of fuel injection system do these have? I thought it was tbi but after some research it says they stopped in 1996.. What were the years for tbi? And what come after that in the 97-99 models i guess? Thanks

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Old 05-21-2012, 06:52 PM
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I'm pretty sure they changed it in 96, because I had a 96' Chevy with a 5.7 that had what they call sequential fuel injection. It has a central injector under the top portion of the intake with 8 plastic lines running off of it to each port. There is a poppet valve at the end of each line entering the intake port of the heads. Mine worked fine up until it got about 160,000 miles on it and then the plastic lines started leaking causing it to misfire.
I replaced the entire unit with a GM updated unit that worked fine, but it was pretty pricey.
I sold the truck not long after that because everything else on it started to fail at the same time and I got tired of constantly working on it.
I loved that truck and the way it performed and the mileage it got and
It served me well for over ten years and was pretty much trouble free until it his the 160,000 mile mark.
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Old 05-24-2012, 09:30 PM
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Cool, thanks man. I did some research and i see they sell a new style of spider with real injectors instead of poppets. Definitely something i will do if i get the truck
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