Is there a problem with my 1990 Chevy truck?

I just recently purchased a 1990 Chevy 2500 single cab long bed with the 350 tbi that has been D.O.T inspected until 2018 in MN. The issue – it has a fuel delivery problem and the previous owner was fairly certain that it needed a fuel pump and I wasnt surprised cuz ive had to do that with past 90s gm trucks.

Is the fuel pump fuse no power on a 1990 Chevy?

Took a test light and found the fuel pump fuse has no power to it. Took my test … read more I have a 1990 chevy pick up trk 1500 , 5.7 engine.

What kind of fuel pump did a 1990 Chevy k1500 have?

1990 chevy k1500 truck (5.0). Power at orange wire of fuel pump relay but pump won’t run. No power to any of the other 1990 chevy: Power at orange wire of fuel pump relay but pump wont run…

What kind of fuel problem does a 1990 Chevy 5.7L have?

Click to expand… It probably won’t be the TPS since you sprayed ether and it fired but died after.

What does the 4×4 do not engage on a 1990 Chevy pick up?

Re: The 4×4 do not engage on my 1990 chevy pick up what… On the full size, the front actuator is electric, not vacuum. When in 4wd mode, a switch on top of the transfer case conducts 12 volts out to the actuator. Wire #50 (brown) is the 12v feed, and it conducts to the light blue wire (#900) to the actuator.

What are the ohms on a 1990 c1500 TBI?

Look very closely at the terminal ,they must make good connection. OK, 170 oms on Pupple wire and 302 ohms on the green wire. If this reading is with the sensor & ECM disconnected you have a high resistance circuit,If not go back disconnect the MAP & ECM so the circuit can be tested.

When does the 1990 c1500 TBI idle go away?

1990 C1500 TBI 5.7L Idle is surging when warm. Unplug the MAP Sensor and the problem goes away, I replaced the MAP 1990 C1500 TBI 5.7L Idle is surging..MAP Sensor..goes away..Autozone… 1990 C1500 TBI 5.7L Idle… 1990 C1500 TBI 5.7L Idle is surging when warm.

What should the EGR be on a 1990 c1500 TBI?

Check the EGR for being partially open (this may require removal to look at pintle) With engine running look at fuel integrator & block learn (fuel trim) they should be close to 128.If they are higher the computer is adding fuel.When the engine is warmed up the 0/2 should be bouncing back & forth over .500 mv.

Why does my 1990 Chevy Silverado not start?

My 90 would not start if the vacuum line to the MAP sensor was disconnected. The MAP is located behind the TBI. Be sure the vacuum hose is in good shape. Mine has to be replaced as the glue no longer worked and it leaked. If you have a vacuum pump, make sure the MAP can hold a vacuum or it needs to be replaced.

Click to expand… It probably won’t be the TPS since you sprayed ether and it fired but died after.

Why is my car making noise under the dash?

So this one gets electrical again. If you compressor turns on and the low side pipe going into the firewall of the engine compartment is getting cold (around 30-40 degrees), and you are not getting the same temperature air out of the dash vents, then you have a vent, ducting, or fan problem.

Where is the tach on a 1990 Chevy truck?

That white wire on the coil is the feed for the tach in the dash, if your truck didn’t come with one it’s left unhooked. and found a good ground then had my gf turn key and slowly pump the peddle and the highest number was 2.1 with the peddle to the floor.

What kind of engine was in 1990 Chevy C / K?

The 7.4-liter V8 engine was revised, and could be mated to a 4-speed automatic instead of the prior 3-speed. In the 454 SS, that engine now made 255 horsepower–25 more than in 1990. 1992 C/K Pickup. Sportside trucks with the flare-fendered cargo box could have an extended cab this year.

Where does the lifter sound come from on a Chevy Silverado?

You can hear lifter click best around the top of the engine, and isolate the noise with a stethoscope against the valve cover. It will occur at idle and increases as you rev the engine, continuing even when the engine is warm. Valve lifter noise is detrimental and should be addressed quickly.

What kind of noise does a Chevy Silverado make?

However, in TSB 02-06-01-038 (Dec 2, 2002) GM identifies a different engine knock or lifter click that is repaired by replacing the oil pump O-ring seal. Figure 3. GMT800 Vortec piston and valve noise.

Why does my 5.3 liter Vortec make a ticking noise?

Causes of Startup Noises in a 5.3L Vortec Valve Lifter. Lifter tick is a common occurrence in V-8 engines like the Chevy 5.3-liter Vortec. This ticking sound is caused by the valve lifters, which are filled with oil during engine operation.

When did the Chevy small block V8 end?

The original small-block Chevy (SBC) V8 was built for decades, spanning from the mid-1950s through the 1990s. But changing times demand changing designs. Increasing efficiency, horsepower, and emissions reduction was the name of the game in the late 1980s and early 1990s, and the camshaft-driven HEI distributor on the SBC was no longer effective.

What should the TPS be on a 1990 Chevy 5.7L?

The TPS should go from >0 to ~4.8 VDC (IIRC), for example mine goes from 0.45 – 4.39VDC at WOT. I know they say it should be ~ 0.58 – 0.59VCD but, that’s close enough for me.

What happens when the fuel pump goes out on a Chevy Silverado?

There are physical signs that you can feel when your Silverado’s fuel pump is going out. Before taking anything apart, check to see if your engine’s computer has any trouble codes saved in it. The engine may throw a P0087 trouble code. This trouble code detects that the fuel rail/system pressure is too low.

What are the symptoms of a bad fuel pump?

Here are the most common symptoms of a bad fuel pump in your Chevy Silverado: One of the most common signs that a fuel pump is going bad is a whining sound. The whining sound can indicate that the fuel pump is going out before there are any performance based issues. Keeping an open ear can save you from getting stuck somewhere with a bad fuel pump.

Where does the vacuum line go on a GM Truck?

The one coming off the front of is the hard plastic tube, that one goes to the fuel vapor canister, no mystery there. The one on the left is the mystery as the only thing attached to whatever this entire thing is, is the end adapter for the vacuum line so I don’t know if its supposed to be hard or soft or where its supposed to lead.

Where is the vacuum line on a 1999 suburban?

The truck is a 1999 k1500 suburban 5.7 Vortec. Here’s what I’m looking at: If you look closely, there is a second port on the rear of that canister, and that is where the other vacuum line runs to the port near the firewall.

Where is the vacuum line on a GMC Truck?

The year range is pretty non specific. If the truck has a vacuum hose to the transmission (to the vacuum modulator), the line will be a metal tube attached to the large tube that the transmission dipstick is in. It will come up and connect to a hose that will run to the base of the carburetor. The function of this line and…

How to repair a 1988 GM vacuum truck?

Access our GM Full-Size Trucks 1988-1998 Vacuum Diagrams Repair Guide by creating an account or signing into your AutoZone Rewards account. Once you sign in, follow these instructions to access our Repair Guides. Add your vehicle in Manage My Vehicles. Enter your vehicle details. Click the “View More” button, and then click “Vehicle Repair Guides.”

What kind of pickup truck has a vacuum hose?

Repair guides and support for C/K pickup trucks sold by General Motors under the GMC brand, including the GMC Sierra. Answered! View the answer I have this problem too

Is the 1990 Chevy Silverado 1500 a muscle truck?

1990 Chevrolet 1500 454 SS finished in a stunning black exterior with red interior. This muscle truck features a 454 engine, turbo 400 transmission, and 14 bolt rear end. A true blast to drive down… More Info › Please visit www.Survivor-Cars.com for additional photos, information and a video. Lets start with it is a real 454 SS Chevy 1500 truck.

What kind of engine does a 1990 Chevy 1500 have?

What kind of truck was the 1990 Chevy SS?

Gateway Classic Cars of Philadelphia is presenting a 1990 Chevrolet SS 454 pickup for sale. This is a true Classic American Muscle Truck. In 1990 the 454 SS Truck was only available in Onyx Black with the Red interior.

How to fix a 1990 Chevy 5.7L TBI fuel problem?

It ran long enough to drive up on the trailer while under its own power and it also drove off the trailer on its own power (not that same day I brought home) but you did have to keep foot on throttle otherwise it would stall out and not start again until the next day. 1. New Fuel pump 2. New Fuel filter 3. New Fuel pump relay 4.

How big is the cab of a 1990 Chevy truck?

The regular cab 1990 Chevrolet truck seats up to three passengers and the extended cab has room for up to six. According to Edmunds, the headroom dimension is 39.9 inches, the legroom available is 41.70 inches and the shoulder room is 66.0 inches.

What kind of engine does a 1990 Chevy truck have?

It produces 230 horsepower with a bore of 4.25 inches and a stroke of 4.0 inches. The Chevrolet truck comes with two doors. The 1990 C/K 1500 regular cab with a six-and-a-half foot bed and the 454 SS has a wheel base of 117.50 inches. The overall length is 194.10 inches.

What kind of truck is the C / K 1500?

Here we have a 1988 Chevrolet C1500 for sale. This Truck is in Excellent Condition for this Model. 1983 Chevrolet C/K 1500. Very clean truck for the age. Runs very good drives pretty good.

What kind of car is a 1991 Chevy 1500?

1991 Chevrolet 1500 The Ultimate Sleeper – 376ci Twin Turbocharged V8 – 728 Horsepower 571Lb Ft of This 1998 Chevrolet C1500 Cheyenne is an ideal machine for many of us.

What was the Chevy C / K pickup truck in 1990?

A 454 SS muscle truck arrived in 1990, with a performance/handling package. The 7.4-liter V8 engine was revised, and could be mated to a 4-speed automatic instead of the prior 3-speed. In the 454 SS, that engine now made 255 horsepower–25 more than in 1990. Sportside trucks with the flare-fendered cargo box could have an extended cab this year.

Is the 1990 Chevy k1500 5.7 stalling?

I have a 1990 K1500 pickup with the 5.7L engine that I use as a second vehicle and for hauling. It doesn’t get driven every day and usually it’s only used for short trips but now has a stalling problem that I need to figure out.

What kind of car is a 1990 Chevy Silverado?

OK, so I bought a 1990 Chevy Silverado with a 5.7L (350) TBI off Craigslist. I knew I’d have to do a lot to get it into shape, but now its kicking my behind.

What kind of engine does a 1990 Chevy 350 have?

1 Configuration. The 1990 350-cubic inch engine is a V-8 configuration. It is powered by regular gasoline. 2 Internals. The 1990 Chevrolet 350 has a 4-inch bore and a 3.48-inch stroke. 3 Output. When fitted in the 1990 G-series van, the 350 produces 190 to 195 horsepower and 290 to 300 pound-feet of torque.

What kind of transmission does a Chevy Silverado use?

That kind of performance requires steady maintenance and a quick response to problems like slipping gears. Chevrolet Silverado automatic transmission parts from AutoZone bring back that smooth power transfer you need when you are digging in and working hard.

Do you need a new transmission on a Chevy C3500?

Your Chevrolet C3500 is a massive and strong pick-up truck you rely on for hauling power and other heavy-duty work. When the transmission starts giving you trouble by slipping in and out of gear, you need to get a new automatic transmission for Chevrolet C3500 from AutoZone.

When to know if your Silverado needs a transmission repair?

You can tell that you need Silverado automatic transmission repair when the gears slip instead of shifting smoothly, and it’s best to plan for a repair then. Burnt fluid and leaks are also signs that your transmission needs to be serviced.

When did the next generation of transmissions come out?

The next-generation transmissions, introduced in the early 1990s, were the electronic Hydra-Matics based on the Turbo-Hydramatic design.

Is there a problem with my 1990 Chevy truck?