1993 Chevy S-10 timing belt

Tiny
BIGBLUE
  • MEMBER
  • 1993 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
If the timing belt was bad would my truck start
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Wednesday, July 2nd, 2008 AT 9:37 PM

8 Replies

Tiny
OBXAUTOMEDIC
  • EXPERT
Your truck won't start if Belt Broke or Jumped Timing. However, you vehicle has a chain not a belt. So, if it jumped timing it won't start and it would backfire.

Have you check to make sure you have fuel getting to the injectors and spark to the plugs?

Also check the Cap and Rotor. When was the last Tune Up?
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Thursday, July 3rd, 2008 AT 9:25 PM
Tiny
BIGBLUE
  • MEMBER
CHANGED SPARK PLUGS, WIRES, DISTRIBUTER CAP AND ROTOR ABOUT 6 WEEKS AGO, HAS NEW PUMP, FILTER, MAP SENSOR, THROTTLE SENSOR, WILL START SOMETIMES AND IDLE BUT STILL UNDRIVEABLE.
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Friday, July 4th, 2008 AT 6:25 AM
Tiny
OBXAUTOMEDIC
  • EXPERT
Can you describe what the vehicle is doing when trying to drive it.

Is the check engine light on? If so have codes pulled, auto zone will do it for free.

I could possibly be either the Idle Air Control Valve (IAC) or the Manifold Absolute Pressure Sensor (MAP)
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Friday, July 4th, 2008 AT 11:26 AM
Tiny
BIGBLUE
  • MEMBER
IT WILL IDLE AND WHEN I HIT THE GAS HARD IT WILL SPUTTER AND THE DIE OUT, SOMETIMES IT WILL START BACK UP SOMETIMES IT WILL NOT, CHANGED IDLE AIR CONTROL AND MAP ALREADY.
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Saturday, July 5th, 2008 AT 5:14 PM
Tiny
OBXAUTOMEDIC
  • EXPERT
Have you checked the fuel pressure and the fuel regulator?

Here's a video on how to test....

http://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
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Saturday, July 5th, 2008 AT 7:27 PM
Tiny
BIGBLUE
  • MEMBER
Were is the test port and the pressure regulater located?

What is the correct pressure for my blazer
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Sunday, July 6th, 2008 AT 7:41 AM
Tiny
OBXAUTOMEDIC
  • EXPERT
The test port is on the left rear of the intake.

Fuel Pressure:

4.3 Vin W (8TH DIGIT OF VIN) - 55- 61 PSI

4.3 Vin Z Torbo - 38 - 43

Here is a pic of were the Regulator is....


http://www.2carpros.com/forum/automotive_pictures/188069_53070_95cfi_1_1.jpg



You will have to remove the Plenum to get to it.
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Sunday, July 6th, 2008 AT 6:04 PM
Tiny
BIGBLUE
  • MEMBER
I'll give this a try and get back to you thanks
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Monday, July 7th, 2008 AT 6:05 PM

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