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92 4.3 s10 blazer, has spark, new coil,new starter new battery, fuel pressure good, cranks but wont start

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I have a 1981 Chevrolet S- 10 that won't start. I have a 2 prong plug the Batt.prong with nut a brown wire spliced going nowhere and a red spotted wire coming from the thing on the firewall


Didn't see s10 for your model year, did see a blazer, though.
Is your vehicle computer controlled or not? You need fuel--spark--air and timing.
If it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, check fuel pressure. Check cylinder compression.

If the starter motor won't even crank have to check starter wiring circuits. Make sure battery has a full charge.
How long have you had this vehicle? I can't see much from here.

Dec 09, 2015 | Chevrolet Cars & Trucks

8 Answers

Chevy 1994 S10 Blazer Starting Problems


Check the battery is in good condition..

Aug 20, 2008 | 1994 Chevrolet S-10 Blazer

1 Answer

I have a 96 Chevy s10 it cranks but won't start I


You need to find out if the fuel pump is working, getting gas up to the engine.
If the pump is working and seen to have good fuel pressure, check ignition by checking for spark.. To work, the engine needs, you know, gas, air, spark, and compression. Why people say, check for gas, check for spark.

Dec 20, 2012 | Cars & Trucks

1 Answer

2001 blazer wont start ran fine before turning off has fuel pressure has fire check timming ok relaced coil ,ing moduel crank sensor dist cap could it be the anti theft ?


You say it has fuel pressure, if it has sequential fuel injection it needs about 70psi to start the engine.
If it cranks and has spark to the plugs, the anti-theft system is not involved.
You did not mention the rotor, I assume you have spark to the plugs not just out of the coil.
If you have not yet checked cranking fuel pressure, I would start there. The pump could be weak or the filter stopped up.

Jul 22, 2012 | 2001 Chevrolet Blazer

1 Answer

Im stummped my 1996 chevy s10 ran just fine one day it stalled on the highway its got fuel spark and good commpresion what sencor could be keeping it from starting


First, charge your battery all the way, Is your check engine light on? How did you determine you have spark and fuel? Did you try starting fluid?

Apr 23, 2012 | 2003 Chevrolet S-10

2 Answers

The car suddenl wont turn over. It has a brand new starter & the battery is fine but it wont turn over.


This will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also this problems are related to faulty spark plug. Check the spark at spark plugs when you start the car. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt.If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced.Also check and confirm that there is fuel in the car. If its very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the car. If the car starts momentarily, then there's a good chance the fuel pump is not working or the car is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gauge and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem.Thanks.Helpmech.

Nov 15, 2010 | 2001 Chevrolet Blazer

2 Answers

99 chevy blazer cranks but wont start


CHECK BATTERY VOLTAGE FIRST IT SHOULD BE 12.5 VOLTS.IF NOT REPLACE BATTERY HAVE ALTERNATOR CHECKED.IF BATTERY GOOD.HAVE VECHICLE SCAN FOR PCM PROBLEMS - CRANKSHAFT SENSOR PROBLEMS OR CAMSHAFT SENSOR PROBLEMS.IF ALL IS GOOD GET A SPARK TESTER AND FUEL PUMP PRESSURE GAUGE TESTER.IF GETTING NO SPARK PROBLEM COULD BE LOOSE BAT.POWER SUPPLY WIRES AT IGNITION COIL MODULE OR IGNITION MODULE FAULTY.IF FUEL PUMP NOT RUNNING CHECK FUSE ABD RELAY IF BOTH IS GOOD FUEL PUMP FAULTY.

Apr 02, 2010 | 1999 Chevrolet Blazer

4 Answers

93 chevy s10 wont start


Does it crank the engine ? If not take a look at the starter connections and the starter.Replace the starter if nessesary.
Ok, now that you got the most common problems out of the way, you should check for spark at the spark plugs. Remove a spark plug and attached to the wire. Get a good pair of rubber gloves and put the thread of the plug to ground and crank the engine. The spark plug should spark a bluish spark. If it has an orange spark the spark plug or wire may be bad. if it does spark fairly good.

Check the fuel pump. if it has an electric fuel pump you should hear it when you turn the switch to on. It is a whirring sound. if you can't hear it. the Pump is bad or the shutoff valve turned off the fuel system. Check it to see if the button is up. If it is then the valve clicked off. Press it down. If it is down and there is no fuel the fuel pump is bad.

If it is a mechanical pump, take off the hose to the carb if it does have one. crank the engine . It should pump gas right away.

If it does have spark or fuel to the sytem, then it is a sensor or other problem.You will have to get a trouble code for it. to narrow everything down.

Check the timing belt or chain to see if it is still good and tight. If it is not your timing belt or chain skipped or cut off. you will have to replace it.

I hope you can get some help from this info . good luck

Feb 06, 2009 | 1993 Chevrolet S-10 Blazer

1 Answer

My s10 will turn over, but wont squirt gas through injecter


Does it crank? Do you have any codes? Check engine light? Do you have spark? No spark check coil, and connections, also it would be nice to know what year it is. Get codes read. No crank check battery and starter. No codes or lights check crank position sensor, make sure your pcm is good after replacing your ignition mod you could have blown it if you did do it right. (engine computer) Check cam sensor if applies. Crank and cam could prevent it from starting and I know one I think cam controls pcm's fuel delivery on gm's

Dec 30, 2008 | 1986 Chevrolet S-10 Blazer

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