How do you diagnose no fuel pressure in 1989 XLT after replacing tank fuel pump and filter but not getting sufficient pressure at the injector rack?
I would make sure that the pump is running all the time. Is it getting current?Try a jumper wire to the pump; Splice it into the positive lead .There are two wires at least to it and a separate for the gauge. I went through this whole thing to find out I had a frayed wire near the pump. I hope this helps you. Mark
try the pump on the frame there are 2 pumps high & low low is in tank
Also check the interia switch. It may need reset. It is located on the passenger floor board, under the carpet next to the tranny hump.
I need Help on working on fuel problem on a 1998 s10 blazer it wont start and I have replaced everything the injector body the pressure regulator and im getting fuel up to the injector body not spray?
You'll notice a drop-off in your gas mileage, then a really rough idle. If the pressure is REALLY low, you may even get a stall when coming to a stop occasionally. Replacing the fuel pump ranks up there with getting a prostate exam. So, before taking on that challenge, consider replacing the fuel filter, running through a tank of GOOD fuel-injector cleaner, and attend church (yeah, replacing the pump is THAT bad!!!). Good luck!
Pressure washers use an attachment called a chemical injector to siphon soap into the water stream. The chemical injector works based on the the physics principle known as the Venturi Effect. The Venturi Effect occurs when there is a restriction in a medium through which water or air is flowing. This restriction causes an increase of speed in the flow, but a drop in pressure. A chemical injector uses this drop in pressure to siphon…
The engine on an s reg 406 glx td engine turns over fine but won't start is this likely to be the glow plugs and is replacing them a diy job thanks?
Glow plugs only make starting easier for diesels. If you put the vehicle in a warm location and let it sit overnight, it should start even without glow plugs if the engine isn't too cold. Make certain that you are getting fuel to the injector pump assembly. With someone cranking the engine, loosen the fuel inlet at the injector pump and see if you have any fuel pressure to the high-pressure injector pump. If not…
1991 camaro wont restart after warm up in close loop no injector pulse at cranking rpm has spark and fule pressure is normal ecm tps map iac all confirmed ok will start with fule added at air intake?
If it is just one injector, it is a bad injector or a problem in the wiring harness or connector for that injector. If it is all of the injectors, it could be a fuse, the entire injector harness, a broken loose or unplugged connector on the injector harness, or the fuel pump or fuel pressure regulator.
POSSIBILITIES: Spark plugs need replacing. Fuel injector jets are clogged, dirty, or need replacing. Ignition timing is off adjustment. Air cleaner is blocked, dirty, needs replacement. Inflate tires to proper pressure. Vehicle is not shifting into Overdrive. Excessive/unnecessary idling to keep A/C running.
You do not hear the fuel injector kick in when the key is turned on and it cold weather you have to pump accelator a lot to get veh to start NO?
Could be an injector spraying at below the pressure that it should. Or a head gasket. Check your radiator for milky fluid, if not you can determine the bad injector by loosening the nut at the injector line/injector until the sound of the engine changes. The one that does the least change to sound/rpms is the bad one. You can have it tested at your local dealership.
I want to clarify if you are asking if you can blow air through a fuel injector? If this is your question, I am not really sure what you are going to gain by trying to do this. A fuel injector has a tiny valve inside that opens with an electrical pulse from the PCM. Even if you could open that valve, the passages inside the injector are the size of a pinprick. There is…
To change the injectors on a 6.0 you must first 1. Remove the valve covers 2. Remove the high pressure oil rail. Be careful not to drop any bolts, not to break off the injector connectors, they break easily. 3. Remove the injector clips on the outside of the head, inboard towards the turbo. 4. unbolt the injector 5. Use an injector puller so that you dont damage the injector, or injector bore.
A fuel injector is pretty much like an electric solenoid. The injector is therefore an electrical and mechanical component. It opens and closes a plunger which is pulsed in the injector by the on board computer. The computer uses all the other sensors on the vehicle to calculate how long or how many pulses needed to keep the fuel injector open. Fuel is driven to the injector or injectors by an electric pump which also…