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S10

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Question
I hear a hissing sound when driving, and it only stops right after applying the brake pedal.
A likely cause of the hissing sound is a leak in the atmospheric valve within the power brake booster. The reason the sound ceases when you apply the brakes is because the vacuum valve within the booster closes upon pedal...
Question
Electrical issue
Hello. The alternator failing may have strained the battery as it was going out. You may want to start by having the battery tested. The connection between the starting and charging system also need to be checked. All connections need...
Question
Tail light out and rear blinker
Hello. You may be facing more than one issue at the same time, due to all of these being related to a different system. One of the only components that can effect all of these systems is the ground connections....
Question
My truck makes clicking noises when accelerating and won't start up sometimes.
Issues with starting the vehicle can be caused by a few different things. A few things to look at would be the starter, the starter solenoid, the battery, and the ignition switch. These are the components that make up the...
Question
My truck runs and drives it starts with no problem however it takes off slow has oil in the air filter and won't go over 40 mph
Hello and thank you for contacting YourMechanic. The oil in the air filter is from the positive crank case ventilation valve (PCV)) is not functioning causing the oil to build up and blow out of the valve into the intake....
Question
The 3rd and 4th cylinder are fouling the spark plugs. What could be the problem?
Hello there, it sounds like you have several different issues going on with your 1989 Chevrolet S10. You did great replacing the spark plugs to address the misfire issue as this commonly is the cause. If the problem persists or...
Question
My son bought an S10. It drove for a week. It was good until I changed oil and heard a knock!
Hi there. I hate to be the bearer of bad news, I but I think you will need to pull the engine out, disassemble it, and check clearances precisely to determine the source. Given your mileage, and the "sludge" condition...
Question
Motor and transmission compatability
Hi there, thanks for writing in. The GM 4.3l V6 was also an engine choice for 2nd generation S-10s (1994-2004), so parts and information on a conversion to that drivetrain are plentiful and affordable (as swaps go). Check out the...
Question
When I turn if on it idles very low
Hello there, many common faults will cause a poor idle on your 1983 Chevrolet S10. Problems that can cause these symptoms are a vacuum leak, idle air valve, fuel pump, spark plugs, coil, plug wires, fuel filter, alternator, or a...
Question
The oil pressure is fine but when I crank the car and when it warms up it drops down to maybe 20 and starts knocking a little. Whats wrong?
The first step is to check the level of the oil. Assuming it's full, and there are no leaks on the system, it could be the pump or the sensor. The easiest way, despite that you need a special tool,...
Question
Losing antifreeze
Hi there. You could be losing antifreeze in either the combustion cylinders or the engine valley. Inspect the spark plugs for signs of antifreeze entering the cylinder. If there is an intake manifold leak or any other leak that could...
Question
Why do I have a p0016 trouble code?
The cause for a p0016 trouble code could be normally be tracked to one of two areas. The code is set when the computer does not see synchronized information being received from the cam and crank sensors. It will be...
Question
My trucks temperature gauge went up and won't start now
This truck has no carburetor. If there is a problem with spark, sometimes you will be able to smell fuel from the exhaust while the engine is turning over and failing to start. If so, there is some fuel making...
Question
Code p0300 comes and goes as a flashing ses light
Hi there: Thanks for this data! It's great information that could help a mechanic onsite diagnose your engine issue with the 2003 Chevrolet S-10. In general, the OBD-II trouble code P-0300 indicates that multiple cylinders are misfiring in a random...
Question
5 speed manual
Hi there: Unless you're a transmission specialist, it's very difficult to complete a physical inspection on a five-speed transmission if it's out of the vehicle. Some of the basic things you'll want to inspect are transmission seals, that the gears...
Question
My vehicle has a Starting/Sometimes running issue. What's wrong?
Hi there. Check to see if the vacuum pump has seized up on the engine. If the pulley is not turning then the belt will make a screeching noise and put a huge load on the engine. The extra load...
Question
Having trouble putting it gear.
Hard shifting of a manual transmission can be caused by a few components. First thing considering the mileage, has the trans fluid ever been drained and refilled? If not, that may be a good place to start. Verify what type...
Question
No power when talking a hill pedal to the floor high rpms
Hi there: The O2 sensors are a critical part of the emissions control, air/fuel mixture program that will impact the efficient operation of any modern, fuel injected vehicle. If the O2 sensors are faulty, it can cause the symptoms you're...
Question
I have a wire that isn't connected. It's yellow and brown and it comes from under the brake booster. Where does it go?
Hello. The wiring you have found could possibly be to a few different things. One possibility is that the wiring may be to the under hood light that some of these vehicles were equipped with. I would look for a...
Question
No headlights and high beam indicator light on
Hello. There is not enough information to definitively say what the issue is. Do the headlights not work when they are on normally, or on high beams? If this is the case, the issue is likely pertaining to the power...

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