Question about 2002 Chevrolet S-10

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2002 s10 4.3 v6 hard to start sometimes new fuel pump injecters dist plugs when it start runs fine

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6ya6ya
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Posted on Jan 02, 2017

66 chrgr
  • 1011 Answers

SOURCE: 1999 S10 Blazer 2WD 4.3L V6. Starts hard, idles rough.

you have a single injector under the intake plenum it has 6 branching fuel leads off of this.A very common problem is the regulator attached to this and it leak off fuel which falls into the intake .causing this problem. it needs to be replaced .i have done at least 80 of these in my career.this will fix your problem.thanks for choosing fix ya

Posted on Mar 04, 2009

  • 341 Answers

SOURCE: 98 chevy camaro wont start

check fuel pressure regulator

Posted on Dec 06, 2008

  • 124 Answers

SOURCE: 2002 chevy blazer fuel pump (4 door)

yes you have to drop the tank. you will also need a fuel line tool to unhook the fuel lines. before you drop the tank see if tou can reach and wiggle the electrical connection on the top of the tank. these pumps have a pigtail issue. please rate

Posted on Dec 08, 2008

  • 15 Answers

SOURCE: 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

Posted on Dec 30, 2008

  • 1 Answer

SOURCE: 1997 chevy silverado 3500 with

We found the problem by taking the truck to the dealership, after spending $550.00 on parts and having everything we could remove tested or we purchased them new and replaced them. We spent two weeks on it and took it to Chevrolet but it took them three days after all we had done, the problem turned out to be the gear on the distributor, sure we replaced every part in it but because we could not get the distributor out with the intake on it we had not even considered the gear, thanks for your assistance and maybe we'll try you again next time....Thanks again.

Posted on Jan 17, 2009

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Nissan v6 patrol 1993 engine missfire on l/h bank first cylinder all plugs leads dist cap rotor all been changed still misfire


petrol misfire on left bank only
strange with all the parts replaced
if all spark sorted
plug lead in right order to plugs on left bank


its injected V6 .... it runs getting fuel

might be ecu pulse missing on one injector

is the coil arching or have a crack in it

i would check
02 sensor looks like that motor only has one
vacuum leak s
leaky valves , poor compression ,
or fuel pump .....rail pressure regulator ?

02 sensor ... looks like that motor only has one

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26334704-xld5pokq11zihdmvndqke0w0-4-1.jpg

Oct 31, 2016 | Nissan Cars & Trucks

1 Answer

4.3 v6 vortex 2002, the truck will not turn over, there is spark at the plug, and fuel and pressure at the valve on top of the engine. When I turn the key is starts but don't turn on. Just replaced fuel...


Most fuel injection systems use a ignition bypass circuit to energize the fuel pump when starting the engine. However, when the engine starts and the ignition key is returned to the "On" position, a Fuel Pump Relay keeps the fuel pump working. The relay may be defective.

Dec 27, 2014 | Cars & Trucks

1 Answer

I have a 2002 Kia Sedona that does not like to start in the morning if I pump the gas and keep trying to start it it will eventually start I've changed all the plugs and now it runs a lot better but still...


Pumping the gas does nothing as this car is fuel injected. Try cycling the key on for 5 seconds, off for 3. Repeat 3x then try starting car. If the car starts faster then you are losing the prime in your fuel line over night.

Apr 10, 2014 | Cars & Trucks

1 Answer

I have a 89 nissan pathfinder.3.0L 4+4. will run.some times.it just skips.cut it off.start it back up.then it runs good.some times hard to start.then starts skipping.new distriberter.fuel pump.all the


The problem of your car is that the fuel system/electrical system is malfunctioning. You mmust make the mechanic draing the gas from the tank, clean the tank, change the fuel filter, service the fuel injection system if it has it and if it is caburetor system service the carburretor, change the spark plugs and the air filter element.

Jan 18, 2013 | Nissan Cars & Trucks

1 Answer

T10 blazer hard to start when cold,easy to start when hot


4.3L V6 CPI - center port fuel injection . you need 62 psi .When cold give it a shot of carb.cleaner or starting fluid ! does it start then ?

415-455 kPa (60-66 psi

Mar 18, 2017 | Cars & Trucks

1 Answer

I have a 1997 chevy S10 Blazer with a 4.3 V6 and I get 300 code. What do I need to check?


Hello...

So that we are all on the same subject. The code means Multiple Misfires are being detected. This can be caused by a bad Fuel Pump, Fuel Regulator, Bad Spark Plugs or Wires or Dist or Rotor, Camshaft or Crankshaft Sensor.

These codes are sometimes hard to troubleshoot but i would start simple with the ignition and work from there...

Good Luck....

Jun 16, 2010 | 1997 Chevrolet Blazer

1 Answer

I have a 1988 pontiac firebird with a 2.8 v6 fuel injected engine that displays code 32 and 34. We have changed the plugs, plug wires, rotor, and dist. cap and have also replaced the mass air flow (maf)...


Check throttle position sensor (TPS) is a sensor used to monitor the position of the throttle. The sensor is usually a potentiometer, and therefore provides a variable resistance dependent upon the position of the valve. The sensor signal is used by the engine control unit (ECU) as an input to its control system. The ignition timing and fuel injection timing (and potentially other parameters) are altered depending upon the position of the throttle, and also depending on the rate of change of that position. For example, in fuel injected engines, in order to avoid stalling, extra fuel may be injected if the throttle is opened rapidly (mimicking the accelerator pump of carburetor systems). the cost about 50-75 bucks.

Oct 21, 2009 | 1988 Pontiac Firebird

1 Answer

Hard to start any time of the day for 1994 Nissan Quest XE.


turn your key on, DO NOT TOUCH THE GAS PEDAL and start, good luck. Pumping the pedal doesn't do a thing for fuel injection. In thre days of carburetors and you had control of your own property, Pumping did a couple of things. It set the choke and added more fuel. But that was yesterday and yesterday's gone.

Jun 30, 2009 | 1994 Nissan Quest

1 Answer

Won't start 96 k1500


fuel problem or timing problem i had same problem on 94 aerostar found out the dist. was bad and timing off by 20* bought used dist. adjusted timing runs beautiful

Mar 23, 2009 | 1996 Chevrolet K1500

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