Question about 1998 Chevrolet Tahoe

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Will not start and backfires though carburator .also replaced distributor cap. all because changing plugs and wires.

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You probably got the wires in the wrong position on the distributor cap, you need to get a diagram of the firing order.

Posted on Jun 06, 2010

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1 Answer

It was running great and started backfiring through the intake. Just had a valve job with new valves, valve guides, springs and a new rocker arm assembly. New point, rotor, distributor cap, and wires.


recheck the valve clearance when the engine is hot if it is hydraulic operated then thee will be an auto adjustment but it should be around .010 " when stationary and hot

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Compression, spark , timing , fuel for any engine to run. Don't forget a stopped up catalytic convertor will have the same effect as you described. Backfiring of course is fouled plugs, bad plug wires, look for arcing from wires when it is dark outside. If it has a distributor check for cracked cap, had my 91 GMC start backfiring then die due to ignition module inside distributor going bad. It would start back up after it cooled for about 10 minutes.

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Car wont start only backfires


you are out of timing with the distributor
pull the distributor out
remove a no1 plug to determine tdc compression stroke ( put your finger over the plug hole and pressure is compression stroke )
check the timing mark on the balancer pulley and align it to 112 degrees btdc \ on the distributor there should be a mark like a hacksaw cut across the lip of the body
align the rotor button to that mark
when it slips down it will turn
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do ypor wiring order from that first wire

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1 Answer

Won't start


If it's backfiring through the intake, then more than likely it's a timing issue. The distributor cap has the cylinder numbers molded into it where the plug wires go... Make sure the wires are in the right spots. If that's good, then it's possible the distributor isn't lined up right.

May 10, 2013 | 2001 Chevrolet Chevrolet Blazer

1 Answer

1999 chevy blazer not starting


Check the plug wire from the ignition coil to the distributor cap.
If you haven't already, replace the distributor cap and rotor.
The GM Vortec's have issues with moisture getting inside the cap and rotor and causing problems.

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3 Answers

Chev 396 backfires through carburator while starting then stalls. Is the timing Advanced and if so how do I change it enough to get the car running?


Hi wyocwboy here, Have you changed Spark Plug Wires ,or distributor Cap & Rotor? If you have this really sounds more like a Few spark Plug Wires have Been put on wrong. If you have'nt changed opr moved any of the wires or changed cap & rotor,Its Possible that your Timing Chain has jumped a Notch.Clean off your Damper -Which is the Bottom Pully your Hamonic Balacer, then rotate your enging until you Find your Timing Marks, Clean good and take a Marker or best a Chalk or Soap stick and mark it a 8 Degrees BTDC (Before Top Dead Center) Hook up a Timimg like Assuming it does run.And see if your able to see the Timing light Flashing on the mark if not Rote your Distributor either way Slowly and See if you can get the Light on the MARK you Made on The Harmonic Balancer. If Not Either Your Timing Chain Jumped a Notch or your Distributor may be off a nocth. To Check to see if your Timing Chain Jumped a Notch =Remove the COIL WIRE from Distributor Cap So it Won't Start then Remove #-1 Spark Plug Have a Friend Turn the Key off and On just Bumping the Engine a Little at a Time,Keeping a Compression Gauge in the #-1 Plug Hole When the Gauge Needle goes up you are close to TDC (TOP DEAD CENTER) STOP THERE .Check to see if the Mark on your Bottom Pully you made is at or Close to Ling up on top dead center. Trace #-1 Spark Plug Wire up to the Distributor Cap Remember the wires In the Dist. Caps Position or mark it to. Pull the Cap off The Distributor Rotor Should Be Pointing to Close to Where Your Number 1-Spark Plug Wire was Located.
Run These Series Of Tests and it Should Tell you or Give you a Very Good Idea of Your Problem. Please Let Me Know if This Helped You. FROM THE WYOCWBOY

May 22, 2010 | 1983 Chevrolet Chevy

1 Answer

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you may be getting water on your computer leads. something is getting wet. check all spark plug wires. take off 1 spark plug wire at a time as engine is running replace if no change in sound. if you have a bad plug or wire this will be the best way to find out. should be an easy fix.

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1 Answer

Backfireing


Hi
Check for bent push rods or broken or worn out rocker arms.

Apr 01, 2009 | 1987 Chevrolet Suburban

1 Answer

1992 Firebird not starting


If it is backfiring the firing order is not correct. turn the crank until the timing mark lines up to zero on the timing cover. Remove the distributor cap, and see where the rotor button is pointed. It should be pointed at number 1. (at this point you have a 50/50 chance) The cam turns half the speed of the crank shaft, this means that even through cylinder number one is at top dead center, it might be on the exhaust stroke instead of compression stroke. If this is the case, you will need to turn the crank shaft one full revolution, and try again.

Reinstall the distributor cap with plug wire number one being placed where the rotor button is pointed. Install the rest of the plug wires in order.

Jul 16, 2008 | 1992 Pontiac Firebird

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