What does the fuel smell like in a GMC Sierra 1500?
If so pull the air filter off and sniff the throttle body for a fuel smell. If the diaphragm has ruptured it will literally be like putting a hose with fuel into the intake and running it full.
Is there a spark in my GM Truck?
Yes, that too would be an issue. However, you would get nothing when trying to start, let alone a spark issue. So I am having the same problem, and thought maybe I had a ground issue.
What to do when your GMC Sierra stops running?
If you have fuel pressure after the above tests pull a spark plug and check for spark. If you don’t have spark check the cam position sensor in the distributor. If you have spark with no pressure it is the pump.
How does a GMC Sierra 1500 fuel pump work?
The older model has steel lines coming off of the top of the pump to the frame rail and then connects to the frame steel lines with short hoses, you’ll need line wrenches and the ability to curse. The newer style has plastic tubes from the plastic pump casing and uses those quick connect fuel fittings and you’ll need the disconnect tool.
Can a Chevy C / K 1500 run without fuel?
Also I haven’t fully checked the Spark, but the Truck run’s fine when you spray Starting fluid into the Throttle body. Any suggestions on why the truck isn’t accepting the fuel, it cranks fine, just wont run without starting fluid. these trucks have to have between 55-65psi of fuel to run.
What to do if your GMC Sierra stall out?
69 people found this helpful. I have a 98 gmc searria 4×4 i checked fuel pressure it was under i changed fuel pump and fuel filter and its still starving for fuel what to do it starts with starting fluid 42 people found this helpful.
Why does my GMC Sierra suddenly stop running?
Truck suddenly stops running, acting like it’s out of fuel. There is fuel in the gas tank and, I can hear the fuel pump when I turn the ignition on. Is there a fuse, or relay that is maybe causing this to happen?
The older model has steel lines coming off of the top of the pump to the frame rail and then connects to the frame steel lines with short hoses, you’ll need line wrenches and the ability to curse. The newer style has plastic tubes from the plastic pump casing and uses those quick connect fuel fittings and you’ll need the disconnect tool.
Why is my gas tank missing on my 1987 car?
Bad selector switch in the dash. Ground is missing on the tank. The large O ring that seals the sender unit in the top of the tank also electrically isolates it from the tank and the rubber straps that hold the tank in place isolates it from the chassis.
What should fuel pressure be in a GMC Sierra 1500?
I assume there really is no way of testing the the regulator itself considering it’s incorporation. 38 people found this helpful. The test is: 12-15 psi when the key is turned on and the pump will shut off within 3-5 seconds and the fuel pressure should drop to 12-13 psi. 11 being the bare minimum and 13 the Max.
Can a bad fuel pump cause a bad gas tank?
These are notorious for getting corroded and falling off. Bad fuel pump. A stock 87 fuel system will have a pump in each tank. The hose that connects the output of the fuel pump to the metal supply line going out of the tank has gone bad. (Inside the gas tank). This is another frequent problem.
What causes a bad gas gauge on a Chevy truck?
A poor ground or loose connection to a gas gauge is just as likely to cause problems as loose or dirty battery cables assuredly will with your starting system.
Bad selector switch in the dash. Ground is missing on the tank. The large O ring that seals the sender unit in the top of the tank also electrically isolates it from the tank and the rubber straps that hold the tank in place isolates it from the chassis.
Why is there no fuel going to the carburetor?
A hole in the fuel line on the tank side could also cause the fuel pump to suck air instead of fuel from the fuel tank. There may not even be signs of leaking, since a fuel line leak on the tank side would have to be above the fuel level for leakage to show. Remove and check all fuel filters located in the fuel line and in the carburetor.
What to do if your gas gauge fails to move?
If the float is OK and the float arm seems to be swinging freely through its full range, replace the tank unit. Ground the gas tank terminal post of the tank sending unit using a jumper wire. If the dash gauge now reeds empty, the gas tank unit is defective. If the dash gauge needle fails t move, the dash gauge is defective.
If so pull the air filter off and sniff the throttle body for a fuel smell. If the diaphragm has ruptured it will literally be like putting a hose with fuel into the intake and running it full.
Where can I get a Chevy GMC quote?
Get an online quote from Chesrown Chevrolet Buick GMC, Inc. for your pre-owned vehicle. Chesrown Chevrolet Buick GMC, Inc. was founded over 50 years ago with the goal of having the best customer service in Columbus.
What was the problem with my GMC Sierra 1500?
Did have one cracked vacume line from the throttle body to the purge solenoid, also replaced. Seems to have plenty of vacume through out the system. Removed and inspected the egr valve, no excessive carbon build up and appears to be working properly, good vacume going into the solenoid, replaced the solenoid just for good measure.
How old is Chesrown Chevrolet Buick GMC, Inc?
Chesrown Chevrolet Buick GMC was founded over 50 years ago with the goal of having the best customer service in Columbus. We still carry that tradition on today, which is why drivers from Columbus, Dublin, Marion, and even further come to us for a new car, van, truck or SUV.
What happens when the diaphragm is ruptured on a GMC Sierra?
If the diaphragm has ruptured it will literally be like putting a hose with fuel into the intake and running it full. When it initially started to go it probably slowly flooded the engine to where it seemed to run ok but the excess fuel created a ton of carbon coating the O2 sensor. Since no air could pass through it, it gave a false lean reading.
What kind of idle does a GMC Sierra have?
After the truck starts and is warm at a stable idle in park/neutral it’ll rev up fine. But the stable idle won’t last long, it’ll idle low and rough. Mpg has decreased drastically and give off a rich smell when running.