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S10 Blazer

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Question
it's turning over but not wanting to start.
Checking all the basics will usually locate the problem. You didn't mention whether you have verified good spark from the coil wire. Confirm that the plug wires are on right. That distributor turns clockwise, and the firing order is 1-6-5-4-3-2...
Question
INTERMITTANT STARTING
Your engine needs a few things to start and run: Compression, Fuel, Spark, Timing, and Voltage. An intermittent no-start would lead me towards no spark or no fuel pressure. You need a fuel pressure gauge to check the fuel pressure...
Question
After adding fuel additive, SUV performed badly
I would suggest checking the EGR valve (exhaust gas recycle). Inside your motor, temperatures can reach 2500 degrees. This is when the EGR valve is needed. When engine temperature is slightly cooler, such as when idling, the EGR valve function...
Question
1993 Chevrolet S10 Blazer will not shift into 3rd and 4th gears
There are a few years of this model Chevy Blazer that had some transmission issues much like what you are describing. I would recommend having the vehicle hooked up to an OBD-2 scanner to check the transmission trouble codes that it...
Question
Turn light indicators and speedometer malfunctioning
This is a common problem on the Chevy S10 Blazers of this era. There is a small power supply board behind the dash which regulates the transfer of power to these components. These are known for going bad. This can...
Question
Every three months, catalytic converter and muffler must be replaced
I would start with checking the O2 sensor. This is what relays exhaust gas changes to the vehicle's computer. When this sensor is not working correctly, incorrect or misdiagnosed air/fuel mixtures are relayed to the vehicle's computer causing incorrect changes...
Question
O2 sensor or EGR valve?
Hi There, There are a few situations that may cause the O2 sensor to produce a false reading. As you may know the [oxygen sensors]((https://www.yourmechanic.com/services/oxygen-sensor-replacement) which are part of your emissions system read exhaust gases to determine whether or not...
Question
My fitting broke off in my manifold intake. What size thread tap do I need to clean out the threads?
As you know, there are a few different sizes of bolts that go into your intake manifold. Without specific detail as to the location of the bolt and what it is used for, this may be difficult to advise on...
Question
It won't crank I replaced the coil pack and it started and I made it home and turn it off and tried to crank it back-up it wouldn'
It is possible that your fuel pump may be failing. Sometimes you can prime the fuel pump by turning the ignition from off to on a few times. This will allow more fuel to be primed into the engine. This...
Question
Gauges and check light problem and speakers
Hi there. There appears to be more than one electrical issue with your vehicle.. A common issue for GM vehicles, is IPC (instrument panel cluster) related concerns. Diagnoses needs to be performed to rule out a poor electrical connection at...
Question
How can I swap to a Vortec engine without a lot of trouble?
The engines are very similar other than a few subtle differences. The donor engine is only a couple of years newer so I do believe many of the electronics may be the same. Make sure you use a new gasket...
Question
Engine won't start while hot after replacing head gasket.
Hi there. The code 12 is for your distributor has no reference. When the engine gets hot, the secondary circuit on the ignition coil gets hot and will not work. I recommend replacing the ignition control module and then recheck....
Question
Barely idles, shakes, shuddering when accelerating
Hi there. Although the difference in altitude may be an issue, it typically would not create vibration or a rough idle. In most cases, this is due to a restriction in fuel flow, or damaged to a fuel or ignition...
Question
Starting issue
Hi There, It sounds like you definitely have a fuel supply issue as indicated by the fact that the motor will start up when starting fluid is sprayed in the intake, but then dies. This is a common sign that...
Question
My Blazer will crank over but not start by itself. It needs starting fluid to start.
Hi there. If you have not replaced your EGR valve, mass air flow sensor or the TPS on your Blazer, you might want to start with these repairs. It is also possible that the throttle body itself is damaged, especially...
Question
What engines will fit into my 94 s10 blazer its a 4 door 2wd
If your VIN has a "W" or "Z" in it the 4.3L engine used in model year 1993 and 1994 will fit and function properly with your existing engine controls. You have to match the VIN to the engine, though,...
Question
Fuel problem?? 1993 Chevrolet S10
Hi there - I'm thinking there are a couple of possibilities since you have identified what is clearly a ["running too rich"](https://www.yourmechanic.com/question/fuel-rich-smell-from-car situation. Leaking fuel injectors could cause this problem, high fuel pressure, or a faulty coolant temperature sensor signal...

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