Question about 1999 Chevrolet Blazer

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Ignition timing on a 1999 Blazer

What should the proper timing spec be?

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Timing not adjustable. ATT TDC rotor blade should be aligned with index mark 6 on distributor housing.

Posted on Feb 02, 2009

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3 Answers

1999 Chevy Blazer. When ignition is turned off none of the accessories stay on anymore.


GM has the RAP system, Retained Accessory Power, locate a wiring diagram, believe there is a relay...

Oct 28, 2014 | 1999 Chevrolet Blazer

2 Answers

What is making my 1999 blazer missing and i put spurk pugs and wire,distributor cap ,crack sensor why is it still missing


a faulty ignition module could be the problem. some vehicles have one for the whole system while others have multiples. you can test individual cylinders by first removing the fuel pump relay, then one at a time remove the spark plugs and ground it to the engine block while a helper hits the key. you should clearly be able to see a spark jump across the spark plug. you can also purchase a diagnostic tool which you hold over the wire while a helper turns the key and it reads the current in an inductive manner. if all cylinders are receiving spark then your timing may be out, in some newer (96 and up) vehicles fine tuning of the timing is achieved via ecm in conjunction with the ignition module and cam/crank sensors. in older and a few 96 and up vehicles timing is done solely by the clock position of the distributor. a timing gun can be used to establish correct timing (refer to owners manual/repair manual for proper advancement or retard of ignition timing)



in the event that you have a properly working and timed ignition its most likely you have a burnt valve or dead cylinder, a compression gauge is the best way of diagnosing these issues.



lastly vortec fuel injection systems are finicky about fuel pressure, incorrect fuel pressure will cause the vehicle to run rough,stall ect...most run right around 60psi you can test your system by hooking a test gauge up to your service port.

May 24, 2014 | 1999 Chevrolet Blazer

1 Answer

1999 2door blazer installed new fuel pump 60psi when tested won't start dump gas in intake starts and shuts off ??????


Sounds like your injectors aren't opening if it holds that pressure. Get a "noid light" at parts store that fits your injector harness connection (just a few bucks). Just pull connector off injector and plug in noid light. When you crank engine, the light should blink rapidly. Try all of them, or at least one on each bank (side).
If light doesn't blink, then check your injector electrical circuit. Power to them is fed through your ignition switch, and the ecm grounds that particular injector at proper time to make injector work.

Oct 31, 2011 | 1999 Chevrolet Blazer

1 Answer

Wont start after overhaul torq is at specs good fuel pressure, spark, and timing at tdc new cam and crank position sensors new fuel pump good compression 90lbs. and holding. any ideas?


First thing to check is make sure ALL sensors have been plugged in properly. If there are any items left unplugged it will not start. This will include temp sensors, transmission sensors, speed or tach sensors. Also need to make sure temp sensor is good. GM products will not start if temp sensor is defective.

Oct 05, 2011 | 1999 Chevrolet Blazer

1 Answer

1999 chevy blazer rebuilt transmission wont shift properly


First change the fluid and filter while you have the transmission pan off take the shift solenoids out one at a time and look for graphite build up in or around the solenoid.

Aug 10, 2011 | 1999 Chevrolet Blazer

1 Answer

Need torque specs for 1999 chevy s10 blazer rear differential bearing caps 4wd 4.3


still looking for you answer but i found this useful bit of info to add to you knowledge complete with specs, diagrams and drawings and pictures for all s10 models. http://h-body.org/dave/Build%20a%20Better%2010-bolt%20H-body%20Rear%20End.htm

Oct 24, 2010 | 1999 Chevrolet Blazer

1 Answer

Need to know the torque spec for rocker arms on a 1999 chevy blazer


Hi, the proper torque spec is 18 ft. lbs. or 25 nm.
Hope this helps good luck

Aug 25, 2010 | Chevrolet Blazer Cars & Trucks

1 Answer

I have a 1999 blazer with a blown 4.3 motor would


Any High Performance ENGINE would Need to Be WIRED Seperatly from 1999 Set up Things Like Primary Ignition system ,As Far as How to Build the Stroker Engine , Go With What ever Specs You Like. It Just Has to be Wired AWAY from 1999 Set up

Aug 01, 2009 | 1999 Chevrolet Blazer

1 Answer

Oil change light needs to be reset


turn the ignition to on without starting and press the gas pedal 3 times within 5 seconds to reset

Nov 12, 2008 | 1999 Chevrolet Blazer

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