Question about 1998 Chevrolet C1500

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Why dos vortec 350 kick back while starting

Kick back when it turns over

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Posted on Jan 02, 2017

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SOURCE: vortec 350 knock on start-up.

Is it a ping or a knock? It could be the initial timing is not set correctly. Are you losing coolant? It could be a leaking head gasket and is leaking a small amount of anti-freeze into one of the cylinders. If it is a bearing it will get worse and worse, is the oil pressure good? I guess I'd take it back to the rebuilder.

Posted on Mar 27, 2010

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I have a 97 GMC 350 vortec that the starter motor kicks back. Its been at the locl shop know for a week Figured I'd research it a little


what exactly do you mean by "kicks back"
IN all engines if the engine fires hard against the rotation of the starter motor, it indicates that the ignition timing is way too far advanced
GM products are around the 10 -12 DEgrees BTDC static timing and any thing over that will cause problems
If the timing is right then I would be considering replacing the crank position sensor and/or the ignition control module

Jan 16, 2017 | GMC Cars & Trucks

1 Answer

New starter problems on a 99 suburban 1500 4wd 350 vortec


pull the starter and check the ring gear teeth for burrs and mashed teeth. Ensure that the new starter has the correct number of teeth on the pinion as required by the ring gear or you will have the wrong gear ratio for your vehicle. There are many engines that use the same starter motor but are differentiated by the number of teeth on the pinion. I suspect that will be why there is hard noise and kick back as that is the out of mesh gears trying to work

Dec 25, 2013 | Cars & Trucks

1 Answer

I have a 1997 GMC Jimmy with a 4.3L Vortec V6. It will turn over but won't start. It's getting fire and fuel. All the dash lights come on when the ignition is turned on and you can hear the fuel...


On the vortec engines they require 56 pounds of fuel pressure to start a few pounds shy of that you have a dead vortec you will need a fuel pressure guage to verify

Nov 30, 2011 | 1997 GMC Jimmy

1 Answer

My truck has the vortec 350. it starts and runs fine but will die after 10-15 seconds almost like i turned the key off. after waiting a few seconds it will start back up.


Check fuel press some auto parts stores will do this for u. may have a plugged filter cheep to replace get it out of the pic. mine it was the fuel pump..in the end..

Mar 28, 2011 | 1996 GMC Sierra

1 Answer

Vortec 350 knock on start-up.


Is it a ping or a knock? It could be the initial timing is not set correctly. Are you losing coolant? It could be a leaking head gasket and is leaking a small amount of anti-freeze into one of the cylinders. If it is a bearing it will get worse and worse, is the oil pressure good? I guess I'd take it back to the rebuilder.

Mar 27, 2010 | 1998 Chevrolet K1500

1 Answer

96 gmc vortec will not start


I AM LOOKING AT TIMING ISSUES OR INTAKE MANIFOLD LEAK.OR EGR VALVE STUCK OPEN.

Dec 30, 2009 | 1996 GMC Sierra

1 Answer

97 chevy 1/2 ton 5.7 vortec truck won't start


remove the shroud around the steering lock ,then with a meter locate the feed ,then the 12v when ignition turned on then with a suitable paperclip or piece of wire turn the igniition on and then from the 12v supply apply a supply the other connection for the starter motor and try that ,if it starts ok then renew the ignition switch ,if it doesnt start its the electronics

Dec 27, 2009 | 1997 Chevrolet K1500

2 Answers

I need the torque specs and sequence on a 1998 chevy 350 vortec


Vortecs are a little different that old school small blocks, grab a Haynes or Chiltons, the cross patterns and specs are simply diagramed. Vortec, as any really, start with 25# then 45# and then final torque which I believe is around 70-75# but to be sure verify with the manual. AutoZones, Murry's, Adavance auto all carry the books, Cheap insurance.
Dan

Nov 19, 2008 | 1998 Chevrolet C2500

2 Answers

1996 silverado 5.7 vortec cranks but wont start. fuel pump, gauges, "idiot" lights, blinkers do not work. flashers and all the rest of lights operate. Just replaced coil and this happens


Had the same problem with my '96 Silverado with 350 Vortec. The truck would only crank. It would start if fuel was poured down the throttle body. Could not hear the fuel pump hum. Fuse was good, but could not hear relay click. Relay was good, Did some electrical wiring trouble shooting. Turned out that one of the connectors that clasp onto one of the pins of the fuel pump relay wasn't making a good connection, too loose. I just stuck a peice of wire into the connector and pushed the relay back in. Relay clicked, Truck Started. It's been more than 4 yrs. since I made that McGuyver fix. Still firing.

Jul 26, 2008 | Chevrolet Silverado 1500 Cars & Trucks

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