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Why does my '90 Chevy C1500 turn over but not start? I'm getting fuel and a spark.
Assuming the spark is adequate and fuel pressure is within specifications, an extremely worn out set of spark plugs may be the culprit. It could be a restricted exhaust system (i.e. a plugged catalytic converter) if you had a lack...
How do I remove the front passenger door lock actuator?
Hello. If the door lock actuator is not coming out, then either there is still some hardware that needs to be removed or it is simply lodged and will require a bit of force to remove. I would carefully check...
I have an oil leak and my engine sounds rugged. What's wrong with my van?
I believe that the oil leak and the fuel problem are separate issues. The oil leak could be your oil filter, oil pan, or drain plug if it is leaking under the vehicle. I would recommend ensuring that the oil...
Car is misfiring and has a lack of power
It is very difficult to definitively say what the issue is. Have you had the vehicle scanned for diagnostic troubleshooting codes? If not, you should start there. Due to your vehicle being pre-1996, the method of receiving codes will be...
Performance exhaust recommendation for a 2015 Jeep Grand Cherokee
Hello. The type of exhaust that you will use depends greatly on what kind of sound that you want to achieve and if you are going to do it yourself or if you are going to have an exhaust shop...
I have a 99 Yukon when I put it in reverse it goes forward. It has only done it twice
Hello and thank you for contacting YourMechanic. Make sure the linkage on the side of trans moves along with the shifter cable as the cable moves. If that's okay, then drop pan and check the linkage to manual valve...
My digital fuel mileage read out and is going up and down erratically
Most "fuel economy estimators" utilize the length of time the fuel injectors are open (we're talking milliseconds here) during each revolution of the engine while driving. As a result, small periods of acceleration or other load factors will have temporary...
How do I properly install a transmission pan back on?
When installing the pan, the mating surfaces of the transmission and the pan should be clean, dry, and free of debris. To assure a good seal, I will usually use some brake cleaner, acetone, or any other type of solvent...
Could the power steering pressure sensor cause my steering wheel to be hard or hard to steer?
Hello. The pressure switch (or "sensor") on your vehicle supplies a signal to the engine computer to increase engine idle speed as the power steering line pressure increases. If the switch were bad, what you would notice is the engine...
I've got a stock 350 with an edelbrock 1406 carb I just put on that I bought used. It has a dead spot in the accelerator so I chan
Hello. From what you describe it would appear that the carburetor may need to be tuned or adjusted. Every engine runs differently, so in most cases, when a new or different carburetor is installed on an engine it will need...
Transmission doesn't shift, gets stuck in fail safe mode.
Depending on the circumstances, it may in fact be in "fail-safe" mode. When this happens you will normally also have a Check Engine Light on which will usually cause fault codes to be registered in the ECU. When the vehicle...
Electrical issue with window
Hi there. If you are still unsure after testing both components, you could always make a switched jumper wire, or use a circuit tester that is capable of acting as a switch. This way, you can avoid having to buy...
Replaced a fuel module but the fuel gauge still reads empty when I know I have a full tank.
This may be related to the fuel sending unit in the fuel tank. Your fuel tank has a float type unit that sits inside of it which monitors the fuel level in the tank and transmits this information to the...
My 1988 Chevrolet Silverado 1500 has power in reverse but spits and sputters with hardly any power in drive.
Hello and thank you for your question. Sounds like the manual valve is out of adjustment and the transmission is applying the forward and reverse input clutch at the same time. This will cause the issue you are having. You...
Driver side Glass scratches after rolling down or up
Hello. The felt weather strips are there to wipe away excess moisture or fog from window. They are not designed to wipe away dirt or debris. You should clean the felt strip with a spray bottle of water or a...
How do I rewire under the dash pad? Many of the wires are just there disconnected and some are damaged.
Hello. If you were to purchase an entirely new harness that is made for your vehicle, it should a simple plug and play. I would not recommend tearing everything out. But instead, if I were to do it I would...
The truck is from Georgia which doesn't have smog control. In California it won't pass smog. It has a new motor and transmission.
Hi, the blue-grey smoke you mention is your engine burning oil, probably due to worn piston rings or valve guides and seals. This is expected from an engine with 300K miles on it. Unfortunately for you, California has pretty stringent...
The car won't start without starter fluid, V2500 Suburban Chevrolet
Hello and thank you for your question. Perform a fuel pressure test. Even though the fuel is pulsing out of the injectors with the engine cranking the fuel pressure could be too low. The system must have a minimum of...
Dodge Ram pinion nut recall
Hi there. A loose pinion nut could definitely cause premature wear on the pinion bearing as there would not be sufficient preload on the bearing to maintain proper contact with the race. As for whether or not this would be...
Why is newly replaced brake booster making a whistling noise and brake pedal staying depressed?
Hello, it sounds like you have a bad run with parts. That booster is leaking internally. It has nothing to do with installation. You need to get another booster, may be a different brand. Make sure your vacuum hose to...

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