Question about 1997 Chevrolet K1500

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305 vortec engine and has no fire need to know where to start, how to check crank sensor, or what else i need to check

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  • nicknjones Jun 06, 2010

    We changed engine cores but when complete no fire at all we used same heads, intake, crank sensor, distributor and all.

  • nicknjones Jun 06, 2010

    my obd2 says no codes could i be missing a ground to the block and how does the crank sensor work?

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  • Master
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If it died all of a sudden no warning, replace the ingition moduel located in the distrubitor. These are common to go out without warning and would cause no spark. It's like a $30 part and just simple tools needed to replace. If it went out over time let me know and I'll tell you what else to check.

Posted on Jun 06, 2010

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  • Chevrolet Master
  • 14,036 Answers

CHECK IGNITION FUSE.IF GOOD SCAN TRUCK LOOKING FOR CAMSHAFT SENSOR AND CRANKSHAFT SENSOR FAULT AND LOOK FOR IGNITION CONTROL MODULE FAULT CODES.IF ALL IS GOOD THE IGNITION COIL COULD BE BAD AND CHECK COIL WIRE FOR POOR CONNECTION OR DAMAGE.

Posted on Jun 06, 2010

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Need help troubleshooting 89 omni?


You need a scanner. Does the PCM see the engine cranking?
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No fire


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Check engine immobiliser is working--- Battery in key not flat--Check crank position sensor--check camshaft position sensor. Have the fault codes read

Apr 27, 2013 | Chevrolet Cars & Trucks

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I dont know where to find the crank sensor on my truck


4.8 / 5.3 / 6.0 vortec

The crankshaft sensor is a 24X (58X on 2004 and later engines) pulse sensor that controls ignition coil firing and injector pulse. The 24 tooth reluctor wheel is mounted on the back of the crankshaft. This location is known as the "quiet" deflection zone that minimizes any false signals to the pcm that can be misinterpreted as a fault. As with the CMP, the crankshaft sensor is a magnetic sensor that has the field interrupted by the passing the the teeth on the reluctor. This signal is conditioned by the sensor circuitry so I can be properly used by the pcm.

The pcm constantly times the pulse intervals it receives, in conjunction with the CMP to resync the point of the #1 firing stroke. Any changes to the timed intervals at each firing order stroke is read by the pcm as a change in crankshaft velocity. Using the other sensors such a MAP, and TPS, the pcm can determine the changes in crankshaft speed when the engine is accelerating or decelerating, within normal operating conditions, and when the changes are outside the normal parameters, the pcm detects this as a misfire, and the appropriate DTC is set. A loss of this signal will result in a no-start or no run condition.eek.gif

The location of the CKP is on the right hand side above the starter.
http://chevythunder.com/LS1_crank_sensor_loc..jpg
http://chevythunder.com/LS1_crank_sensor.jpg

On the 4.3 vortec, it's located on the front bank2 of the engine by the crank shaft.
http://www.2carpros.com/forum/automo...CAS371KE_1.jpg

Thank you for using fixya
Read more at http://gmcowners.com/gmc-forum/showthread.php?t=16373&kcplink=1

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1999 chevy suburban 5.7 L. vortec. Can a bad camshaft sensor cause a no start? rebuilt engine, fuel pressure 60 LBS.,spark at all the plugs, compression 140 lbs, timing is dead on.


i do believe it will not start with out it if you can hook up a scan tool to it crank the engine and look at rpms while cranking should read about two hundred forty rpms thats what fires the injectors the cam sensor tells the computer what cylinder is ready to fire next also scanner will set the cam timming.

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1998 chevy 1500 with a 5.7 l vortec . has a no start issue. the truck just cranks. fuel pump is working and i have very faint spark all plugs and coil are new.when turnnig over nothing happens but when you...


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Jan 23, 2010 | 1998 Chevrolet K1500

1 Answer

It has steadily been getting harder to fire over---Today it won't fire --in past year ,I have changed fuel pump,filter,coil,crank & camshaft sensor,plugs,wires-It has fuel in the line (it squirts out...


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Your starter could be starting to go south on you.  You are having to crank it multiple times becuase it isn't spinning fast enough the first time to start the engine.  When you crank it several times it heats up the starter and it will spin a little bit faster.  Take the starter to your parts store and have them check it out for you.  They should do it for free.  Let me know if you have more questions.  Thanks for an honest rating and for using FixYa!

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