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I have a 1999 Chevrolet Tahoe I just changed all the plugs the wires ignition rotor button distributor cap now When I crank it it runs fine until you mash the gas in it starts raining bad I tried turning the distributor down and up when I get it running good When I get the distributors set where is it runs good when I Gas on it it won't crank Because the timing is advanced too high

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  • 11 Answers

Did you connect the vacuum hose to the timing advance diaphragm under the distributor? The other major item is the timing belt-even if it says you're perfect, the cams might be all out of whack. There's nothing wrong with 5 degrees BTDC if you have a lead foot.

Posted on Jul 31, 2013


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SOURCE: My 1985 Skyhawk won't start. Cranks well but no start


Posted on Dec 08, 2012

Testimonial: "Jeff helped to narrow down the options so result can be achieved"

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SOURCE: 92 C1500 Chevy wont start. Changed plugs, wires,

Change the ignition module. It is located behind the distributor cap; you will have to remove the cap to change it so be sure to mark your spark plug wire locations.

Posted on Mar 02, 2010

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SOURCE: I got 1992 Chevrolet C1500. Have changed plugs,

Sounds like throttle position sensor or mass air flo sensor.Both of these can be checked by hooking up to computer.You dont want to ramdomly start changing sensors can get costly.

Posted on Feb 12, 2011

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SOURCE: 1989 chevy truck, 5.7...will not fire

Hi, I believe there is a computer problem. If possible check codes for no start condition. if you know the no.#1 cylinder at TDC (Top Dead Center) on engine then you will know no#1 distributor is. Good luck.

Posted on Jun 14, 2011

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SOURCE: 1970 Dodge Dart 225 Slant

The carburetor spits when its flooded - so something must be wrong inside it. Since this is the second time it has stalled when turning left it appears that the level in the bowl is higher than it should so the mixture is way richer : turning left pushes the fuel to the left in the bowl, making the momentary level even higher over the jets so the mixture gets so rich that it can't be lighted anymore so the engine stalls.
You will have to dismantle the carburetor, check the float for leaks and readjust it before reassembling it. While you are there check the size of the jets, they might be larger than normal.

Posted on Aug 17, 2011

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1 Answer

1995 chevrolet tahoe

set the timing to 12 degrees advanced as it is too far retarded for speed. check for side play in the distributor shaft as it will cause missing by altering the setting of the points / ignition module clearance. Separate the ht leads with the ht spacer bars ( available from speed / spares they will cross jump and cause a miss.

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98 Chevy Tahoe runs great, but from time to time will not turn over, I leave it for the day and it starts fine. Have changed fuel pump, distributor and cap, starter, battery, plugs and wires. No idea why...

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Changed intake manifold but didn't mark yhe distrubutor. how can i correct this on 1999 tahoe

this motors are hard to get set right even if you marked the distributor for the computer to be able to function right and control the the engine right the distributor needs to be set between -1 and + 1 this leaves no room for error and final placement is usually done with a diagnostic computer

but what you need first is how to get it back in the ball park they will run being off quite a bit but just not very well once you get it up and running u need to take it to someone or somewhere that has a diagnostic computer

Ok now what you need to do is get #1 cylinder on TDC(top dead center ) of the compression stoke put a compression tester into cyl #1 Turn motor over my hand (use socket and ratchet) on crank pulley bolt until you start to read compression on gauge take gauge out and contiune to turn motor over slowly until number piston is at top now put distributor in so when u put the cap back on the rotor is pointing at the number one post on the distributor cap

NOTE: the distributor cap on these motors look at the bottom of the cap you notice where the post for the number 1 cyl is not directly under where u put on the number one plug wire when lining up rotor aim for the post under the cap not where u put the plug wire

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Mine did this with a cap and rotor. I changed it six months prior, but ended up having a faulty cap from Jegs which caused it to backfire. I had crank, spark, fuel, but the cap was crossfiring and wouldn't run.

This cost me a new flexplate, two starters, still a cap and rotor just due to the backfires.

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1 Answer

98 5.7L chevrolet

Engines don't jump time when they are not running.

Rotor will point to number 1 plug wire with every other rotation of the crank.

Get an auto repair manual to confirm you have plug wires in right order on distributor cap.

Also suggest finding Factory Service Manuals at library to get troubleshooting charts and diagnostics.

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