What transmission is in a 1990 454SS?
3-speed automatic transmission
The 454SS was powered by a 454 cu in V8 producing 230 hp and 385 lb·ft. A 3-speed automatic transmission (Turbo Hydra-Matic 400) and 3.73 rear axle ratio added to the truck’s performance.
What did the Chevy 454 SS look like?
It was designed in a time where pickup trucks were clean and simple, while the black paint, red bowtie and front air dam give the truck a purposeful look. MotorWeek were fans of the 454 SS, even in spite of what they considered a high price tag and bad fuel economy even by full-size truck standards.
What kind of fuel pump does a TBI 454 have?
Stock TBI 454 makes 230hp and 380tq so stock fuel pump is maxed out right off and a typical 454 will run better with a fuel pump upgrade even with stock chip. GAS MILEAGE. Always a big complaint with 454 TBI trucks. 90 and older is particularly bad and that is largely due to NO OVERDRIVE.
What causes hesitation and stumbling in a 1990 Chevy c1500?
An expert that got 10 achievements. Re: 1990 chevy c1500 hesitation and stumbling during… Based on what you said, I would say the engine is starving for fuel. The computer has to be disabled to set timing – there should be a procedure for that. I would start with checking fuel pressure at the throttle body.
What is the TBI code on a 1990 Chevy truck?
Consult a service manual or see below for any check engine light code definitions. You can use a late 80’s or early 90’s GM TBI definition. If you have access to a scan tool use a hook up for a 1990 350 cu. in. 5.7L Chevrolet truck. For some scan tools enter VIN 10th“L” 3rd“C” 8th“K”.
When did the Chevy 454 SS come out?
It’s the very formula that Chevrolet chose to follow with the 454 SS, and 13,748 people handed over the cash to park one of these in their driveway in 1990.
Stock TBI 454 makes 230hp and 380tq so stock fuel pump is maxed out right off and a typical 454 will run better with a fuel pump upgrade even with stock chip. GAS MILEAGE. Always a big complaint with 454 TBI trucks. 90 and older is particularly bad and that is largely due to NO OVERDRIVE.
What kind of engine does a Chevy 454 pickup have?
The result is a classic pickup that runs and drives nicely. Of course, with a 454ci V8 under the hood backed by a 3-speed automatic transmission, there is plenty of potential there.
An expert that got 10 achievements. Re: 1990 chevy c1500 hesitation and stumbling during… Based on what you said, I would say the engine is starving for fuel. The computer has to be disabled to set timing – there should be a procedure for that. I would start with checking fuel pressure at the throttle body.