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timmy

timmy 3/14/2021

1998 Chevrolet K1500 Cheyenne 8 Cyl 5.70L

Engine

I have a crank no start problem

I changed the crankshaft sensor the camshaft sensor the coil new ignition system and still have no start

1 Answer


Jimm

Jimm 3/17/2021

First question - how many miles are on the vehicle? What has been tested so far? Why are these various parts being replaced?

With the ignition and key 'ON' - do you hear the fuel pump running?

Attach an OBD1 code reader and retrieve any stored fault codes.

Check for these conditions before throwing more money / time at the problem;

- Air flow; filter condition, no leaks in the air intake system

- Fuel flow and pressure, attach a fuel pressure gauge. Connect it at the fuel rail and measure the fuel pressure when cranking the engine over. Should be around 65 PSI.

- Ignition (spark) at the spark plugs

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