FAQs—GMC S15 Jimmy
There are reports that the GMC S15 Jimmy is prone to ignition failure that can cause the car to suddenly stop running at certain times. How true is this, and what can be done to fix the problem? I'm getting this car used from my parents, and I want to be ready for possible issues.
One of the most common ignition issues that occur in the S15 Jimmy is caused by a failure of the distributor. The said component delivers high voltage to the engine via the ignition module and into the individual spark plugs. The said task involves a high amount of power and heat, which can later cause internal failure in the distributor and its various components. This is the reason the ignition system may sometimes die down, cause the car to run roughly, or make the car stall while you are in the middle of your drive. The most common fix to the said problem is the overhaul of the distributor. If the problem is already too serious, then the distributor might need to be replaced.
I was having some car troubles, so I consulted a friend who's a gearhead for advice, diagnosis, and possible fix. I was told that based on the symptoms, I probably have a leak problem in my engine—the coolant and engine oil are probably mixing with each other. I can't see any leak upon checking, and I'd like to know how serious the problem is. What would happen if the problem is not fixed right away?
Having a mixture of coolant and engine oil in the engine is one of the most damaging things that can happen to your car, and this is one problem that must be addressed right away. Oil is circulated around the engine, which is composed of metal parts. When coolant mixes with oil, the oil loses its ability to flow smoothly around the engine and perform its function well. This will also lead to sludge formation, which is likely to wreak havoc in the engine. If the problem is not addressed right away, overheating and a wide range of other engine problems can occur. Therefore, the moment the problem is detected, you must find the source of the leak right away and to plug it. Check the various engine gaskets and replace them as needed.
I have heard of engine leaks, but the fluid usually leaks outside of the vehicle. However, I've been noticing a puddle of liquid on the floor of my GMC S15 Jimmy. I'm not sure what's causing the problem. Any advice?
The most probable cause of your problem is a leak in the heater core of your vehicle. The said component is responsible for warming your car cabin during cold drives. You can think of this device as a small radiator, and it is crucial to your driving convenience. A leak in the core is critical to the engine as this can cause overheating that might lead to engine damage. You will have to take the dashboard of your car off and replace the said component with a new one.