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Why we are not getting electricity current from the fuel pump to inertia switch
The inertia switch gets power from the fuel pump relay on the inner fender under a black cover. The relay sends power to the inertia switch and then to the fuel pump to run it. If you are not getting...
Hi, thanks for writing in. There are many things that could be wrong with your truck. You may look at the motor mount to make sure that they aren't broken. This is the first thing I look for. Then, I...
2500 RPM idle on cold start. Is this normal? If not, then is it due to a cold start injector?
A higher than normal idle can be due to a stuck open idle control valve or a vacuum leak in the intake when the engine is cold. You may have a bad cold start injector system. I would recommend having...
Timing belt broke.
Hi, thanks for writing in. This engine is listed as an interference motor. This means the engine is likely to bend the valves if the timing belt breaks. The only way to verify if the valves are bent is to...
Gas tank's fuel pump stops pumping fuel randomly. Both fuel pumps are new, gas tank is clean, and a new fuel filters were installed.
Hello. The first thing to check when you have complete failure of the unit is the power supply. If the wiring going to the pump is loose or has a short somewhere, the power wont be delivered or will be...
Low oil pressure eventually will stall out. Is the oil pressure sensor connected to the fuel pump relay?
Hello. Your oil pressure sensor should not be connected in any way to the fuel pump relay. These are two separate and distinct functions. I would first recommend checking the oil level to be sure there is enough oil in...
Car will start and not start
I have seen may of these engines distributors get oil inside of them from leaking seals and this will cause failure of the crankshaft and camshaft sensors inside of the distributor. The distributor should be inspected to check if there...
Car keeps overheating, the cap will not fit on the radiator
The radiator will not cool the engine unless you can find a cap to fit it. The cap seals in the coolant and keeps pressure in the system to keep the system from overheating. If the radiator is an aftermarket...
Were is the code p0001
Hello. P0001 is the code for an issue with the fuel volume regulator circuit. This code is set off when the computer detects that there is an issue with the electric circuit that goes to the vehicle's fuel pressure regulator....
My car stalls 4 or 5 times when starting cold
Hi, thanks for your question. You should check the MAP sensor first to see if it is reading the correct altitude for your location. Sometimes the sensor will read that you are at 10000 feet when you are at 100...
Trouble shooting distributor or camshaft
This is not an error. The crank shaft goes around two times to the distributor one time. This means if you put the number cylinder on the compression stroke top dead center and line up the distributor then if you...
Cranking no start has spark fuel 38 pulse at fuel injectors
Hi, thanks for writing in. Although you can have a "spark" (appearing on an external test), the plugs could be fouled enough to cause a no start condition, especially if you have tried repeatedly to start the engine and consequently...
Overheating and Wont start
Hello. The symptoms you are describing likely stem from a blown head gasket(s). To have this diagnosed definitely will require an on-site inspection.
My clutch hits the floor was running fine, then I checked reservoir and it's full
Hello, thanks for writing in. The master cylinder is connected to the clutch pedal and the slave cylinder is connected to the release bearing. When the clutch pedal is pushed down, hydraulic fluid flows from the master cylinder to the...
van runs lean or low on first start of the day.
This may be a sign of a failing idle air control valve. The idle air control valve is located on or near your intake manifold that monitors the air intake as it is mixed with fuel prior to being injected...
Egr solenoid
Hi there. Once these parts are replaced you need to do the test procedure with the same plug otherwise the light will remain on. If you did the reset then the circuit will need to be tested. It can also...
i have a misfire uner load on a 88 k5 blazer i change plugs and wires
The electrical spark will always look for the shortest path to ground. If the spark plugs are running lean of fuel then the spark plug gap may be harder for the spark to jump to the ground on the wire....
Knocking noise
A handy and skilled technician can usually drill out and repair a broken bolt. but if the area has very limited access, some parts may need to be removed. If the knock is coming from the engine internals, there is...
My gas gauge is doing a funny little dance.
The fuel pumps are all inclusive on what they call a fuel module or assembly. These modules include a float (quite like the float on your toilet) that tells the computer and your dashboard where the fuel level is at....
Car won't start after I changed the fuel pump. It was dying and back firing before I changed it. Could it just be low on gas now?
Hi, thanks for writing in. I recommend listening to hear if the fuel pump is running during cranking, and checking fuel pressure. Should be at least 10 psi. If the pump is not running, check the fuel pump fuse(s) and...

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