94 silverado runnin like sh*t

[meatheadwes]

ran my truck outta gas now she want run for crap till i dog the sh*t outta it. any input?

 

[StretchASU]

Guessing this is a TBI 305 or TBI 350. They are really finicky about fuel pressures and good fuel flow. More than likely you sucked something out of the tank and its clogged the filter now. Change the fuel filter and try again.

 

[meatheadwes]

Guessing this is a TBI 305 or TBI 350. They are really finicky about fuel pressures and good fuel flow. More than likely you sucked something out of the tank and its clogged the filter now. Change the fuel filter and try again.

thanks buddy it gave me a total a** whoopin today changein filter here soon

 

[meatheadwes]

thanks buddy it gave me a total a** whoopin today changein filter here soon

i took filter off and blew it out with an air house and sprayed some cleaner in it its better but still wants to cut out?

 

[rodney eppes]

Generally can't clean filters, Change it, & cross your fingers! Might have clogged, or fouled an injector.

 

[meatheadwes]

i know just tryin to make it last till friday its tbi so probly want be hard to fix

 

[meatheadwes]

changed the filter today runs a whole lot better still has a studder sometimes probably needs plugs. dont think they have ever been changed

 

[meatheadwes]

changed the plugs still cuttin out driver side injectoer is half clogged and im thinkin the tps is goin out to

 

[rodney eppes]

Over my head; is it not throwing any codes?

 

[meatheadwes]

Over my head; is it not throwing any codes?

no codes at all

 

[Caver Dave]

changed the plugs

Gapped correctly and not slapped in out-of-the-box?

still cuttin out driver side injectoer is half clogged

And exactly how did you determine this?

im thinkin the tps is goin out to

And this?

 

[02gmc5.3]

Sea foam works wonders for clogged injectors, but another thing to check is the cap and rotor.

 

[meatheadwes]

Gapped correctly and not slapped in out-of-the-box?


And exactly how did you determine this?



And this?

i bought autolight for the correct vehicle checked the gap to the correct gap spaceing. injector is dripping instead of spraying, and the spring that opperates inside the sensor is a lil wore out

 

[meatheadwes]

Sea foam works wonders for clogged injectors, but another thing to check is the cap and rotor.

i ran a bunch of lucas threw it already

 

[rodney eppes]

Sorry, but you threw good money down the well! My opinion, you gonna hav to buy that injector.

 

[meatheadwes]

yeah your probably right

 

[Caver Dave]

injector is dripping instead of spraying

My experience is if you see the injector dripping with the naked eye (as opposed to using a timing light) there's a 99% chance it's pooched! However, I have seen a rap from a screwdriver handle bring them back in line

I'd recommend replacing the o-rings around them first (if the OE "non-ethanol approved" o-ring cracks, it won't build pressure and will just dribble) and if that doesn't work, replace them both. If one is pooched (clogged/leaking), you can bet money the other isn't far away from it!

the spring that opperates inside the sensor is a lil wore out

Meaning the TPS arm doesn't stay tight against or follow the throttle arm back to the idle position?
Definitely replace it, but be aware that it will need to be adjusted after replacement to provide an accurate reading back to the ECM.

 

[meatheadwes]

My experience is if you see the injector dripping with the naked eye (as opposed to using a timing light) there's a 99% chance it's pooched! However, I have seen a rap from a screwdriver handle bring them back in line

I'd recommend replacing the o-rings around them first (if the OE "non-ethanol approved" o-ring cracks, it won't build pressure and will just dribble) and if that doesn't work, replace them both. If one is pooched (clogged/leaking), you can bet money the other isn't far away from it!



Meaning the TPS arm doesn't stay tight against or follow the throttle arm back to the idle position?
Definitely replace it, but be aware that it will need to be adjusted after replacement to provide an accurate reading back to the ECM.

found a throttle body rebuild kit for $30 bout to order it and get the tps and yes its not goin all the way back to the idle position

 

[Caver Dave]

found a throttle body rebuild kit for $30 bout to order it and get the tps and yes its not goin all the way back to the idle position

That rebuild kit will get you started. Once you tear it down, use the kitchen table to ensure you keep it absolutely clean going back together... use vaseline on the o-rings (to keep them from getting pinched during re-assembly) and "2B" non-hardening sealer on the injector tree cap gasket (so you pull it back off to swap injectors if this doesn't fix it)

 

[meatheadwes]

That rebuild kit will get you started. Once you tear it down, use the kitchen table to ensure you keep it absolutely clean going back together... use vaseline on the o-rings (to keep them from getting pinched during re-assembly) and "2B" non-hardening sealer on the injector tree cap gasket (so you pull it back off to swap injectors if this doesn't fix it)

thanks man

 

[meatheadwes]

figured out it was the fuel pump

 

[rodney eppes]

Wow! Glad you found it! Was the fuel gauge reading properly? On GM, that's first sign of pump going bad. The worse the gauge reads, the worse the pump is getting. When mine starting going out, the gauge was incorrect, but I started running out of fuel=causing misfire code, under high RPMs, towing.

 

[meatheadwes]

Wow! Glad you found it! Was the fuel gauge reading properly? On GM, that's first sign of pump going bad. The worse the gauge reads, the worse the pump is getting. When mine starting going out, the gauge was incorrect, but I started running out of fuel=causing misfire code, under high RPMs, towing.

gauge had been actin funny but the fuel gauge on them trucks are most of the ones i see are broke so oh well time for a new one