TBI Problems - Pirate4x4.Com : 4x4 and Off-Road Forum

clevelandcruiser · 11-24-2007, 03:51 PM

so i have a 91 k5 350 TBI and i am having some serious issues with the engine it will start and idle fine and sometimes rev up fine but whenever i put a load on it, let out the clutch and try to accelerate it starts to cut out and has no power. and other times when i try to rev it up at a stand still it sounds like its missing and backfires and wont go above 3000 RPM's and i've already check all the plugs and distributer i tried a new fuel filter, and checked all the wire connections and vacuum lines. Anybody have any other ideas or have this problem any help would be apprieciated thanks.

mmk5blazr · 11-24-2007, 06:42 PM

ck fuel preasure-"t" in gauge by fuel filter-should be 9-13 psi running.

dick_landy · 11-24-2007, 07:02 PM

whats timing at?

clevelandcruiser · 11-25-2007, 02:36 PM

Well i dont think its the fuel pressure because the fuel pump is pretty new but i will still check it out. and im not sure what the timing is set at but i didnt think it would idle very well if the timing wasnt right

dick_landy · 11-25-2007, 06:50 PM

it will idle ok but when you floor it, it will fall on its face. i got a smokin deal on a truck once cause it had no power. turned out the distributor hold down was loose and the timing was 10* retarded.

clevelandcruiser · 11-25-2007, 10:03 PM

interesting i'll check that out. i was doing some reading and i think it may have to do with the EST/ESC system

11-24-2007, 03:51 PM	#1 (permalink)
clevelandcruiser Registered User Join Date: May 2007 Member # 91839 Posts: 19	TBI Problems so i have a 91 k5 350 TBI and i am having some serious issues with the engine it will start and idle fine and sometimes rev up fine but whenever i put a load on it, let out the clutch and try to accelerate it starts to cut out and has no power. and other times when i try to rev it up at a stand still it sounds like its missing and backfires and wont go above 3000 RPM's and i've already check all the plugs and distributer i tried a new fuel filter, and checked all the wire connections and vacuum lines. Anybody have any other ideas or have this problem any help would be apprieciated thanks.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

11-24-2007, 06:42 PM	#2 (permalink)
mmk5blazr Registered User Join Date: Aug 2007 Member # 98511 Location: Nashville TN Posts: 111	ck fuel preasure-"t" in gauge by fuel filter-should be 9-13 psi running.

11-24-2007, 07:02 PM	#3 (permalink)
dick_landy Registered User Join Date: Jan 2007 Member # 84557 Location: Winnipeg, Manitoba, Canada Posts: 186	whats timing at?

11-25-2007, 02:36 PM	#4 (permalink)
clevelandcruiser Registered User Join Date: May 2007 Member # 91839 Posts: 19	Well i dont think its the fuel pressure because the fuel pump is pretty new but i will still check it out. and im not sure what the timing is set at but i didnt think it would idle very well if the timing wasnt right

11-25-2007, 06:50 PM	#5 (permalink)
dick_landy Registered User Join Date: Jan 2007 Member # 84557 Location: Winnipeg, Manitoba, Canada Posts: 186	it will idle ok but when you floor it, it will fall on its face. i got a smokin deal on a truck once cause it had no power. turned out the distributor hold down was loose and the timing was 10* retarded.

11-25-2007, 10:03 PM	#6 (permalink)
clevelandcruiser Registered User Join Date: May 2007 Member # 91839 Posts: 19	interesting i'll check that out. i was doing some reading and i think it may have to do with the EST/ESC system