Need help with 91 tbi suburban - The 1947 - Present Chevrolet & GMC Truck Message Board Network

60ratrod · 09-27-2020, 06:36 PM

long time no post. But i recently got a decent 91 suburban k1500 that surprisingly enough still has the tbi system intact. The problem that i am getting is a 1/4th-ish throttle hesitation, and SES light that resets every time i shut the truck down and start it back up. And the SES light seems to come on if i give it more than 1/4 throttle, like when i go on the interstate. And just today before getting home there was a rattle/knock/ping that would happen intermittently and go away if i let off the gas. How far off would i be if i was thinking that it could be the knock sensor giving me issues?

09-27-2020, 06:36 PM	#1
60ratrod yes, i do Join Date: Jun 2007 Location: Spokane, wa Posts: 2,734	Need help with 91 tbi suburban long time no post. But i recently got a decent 91 suburban k1500 that surprisingly enough still has the tbi system intact. The problem that i am getting is a 1/4th-ish throttle hesitation, and SES light that resets every time i shut the truck down and start it back up. And the SES light seems to come on if i give it more than 1/4 throttle, like when i go on the interstate. And just today before getting home there was a rattle/knock/ping that would happen intermittently and go away if i let off the gas. How far off would i be if i was thinking that it could be the knock sensor giving me issues? __________________ ERROR 404....... SNAPPY COMEBACK NOT FOUND _______________________________________________________________________________________________ -60 Chevy C10, dead 350/good th350 combo, sitting on a 76 c10 blazer frame, built from 11 different vehicles "the abomination" -07 gmt900 silverado 1500 lt xcab z71, granite blue -81 suzuki gs650g "shelah"- current project -81 kz1000m1 csr "sarge" -next project (just beautification) -07 kawasaki vulcan classic vn900



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