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2000 Chevrolet Blazer Repair Question


Topics covered: Distributor, Engine, Sensor.
Mileage: 167,000 miles.

Asked on January 13, 2012

2000 blazer has no power falls flat at 2k rpm

Changed:
Plugs & wires, distributor, timing gear, cam sensor, throttle positioning sensor, mass air flow sensor,

Answer

Replied on January 13, 2012

check for a vacuum leak and fuel pressure. ALWAYS run a scan on the engine for codes so you don't unecessarily spend money like you have.i f you have a vacuum gauge, check engine vacuum at idle if it is 15" or below check for a clogged converter.

Tiny Answered by hmac300 (expert)
17,879 answers provided
Replied on January 13, 2012

The codes are the reason I changed the parts, it said mechanical engine misfire and gave those parts as possible reasons, but after changing them, I still have 1 code that says engine timing. I'm 99% sure the timing chain is installed correctly, but is there a trick to installing the distributor? I aligned the rotor with the 6 and had the engine at tdc #1

Tiny Response from danny.lee@neo.rr.com
1 question asked
Replied on January 14, 2012

you may have the cam senosr out of align with the cranksensor
. you should really put #1 on tdc and see if the rotor is pointing to #1on the cap. if not move it there as that is the proper procedure for reinstalling dist.

Tiny Answered by hmac300 (expert)
17,879 answers provided

Replied on January 14, 2012

hmm, I will pull it back off in the morning and take a look. Thank you so much for the very fast responses.

Tiny Response from danny.lee@neo.rr.com
1 question asked
Replied on January 14, 2012

also check vacuum at idle if its' 15" or belwo check for a clogged converter.

Tiny Answered by hmac300 (expert)
17,879 answers provided
Replied on January 14, 2012

Im at a complete loss, can't find any vacuum leak, catalytic converter is fine, and the fuel pressure is good. Could you explain this paragraph in an easier to understand way

"The CMP Retard is altered by shifting the distributor in the somewhat oversized hole through the LIM. Even though the hole in the distributor hold down clamp is not slotted and the clamp is fixed to the base of the distributor, there is enough play in the hole through the lower intake manifold to allow for modification of up to 15 degrees. CMP Retard must be properly set to 0 degrees to A) accurately time the spark for each cylinder by giving the widest available advance/retard window & B) to properly align the distributor drive gear on the cam."

Tiny Response from danny.lee@neo.rr.com
1 question asked

Replied on January 15, 2012

mostly turn the distributor to see if you can get it right.just make sure that you saw the mark on the crank at or around zero and the cyl#1 at tdc. then make sure to point the rotor in the cap to #1, then what you have above imeans you can shift the. distributor 15 degrees to bring it where it is supposed to be.in your first response when you had the engine at #1 you shold have pointed the dist to #1 not #6 that puts the dist or cam sensor out of sync with the crank sensor.

Tiny Answered by hmac300 (expert)
17,879 answers provided
Replied on January 15, 2012

not #6 a 6 caste into the housing. Can you look at the link below? this is what i used for instructions to install this, and it can explain the 6 better as well. Maybe I followed bad instructions. This is my first attempt ever at timing a vehicle.

http://blazerforum.com/forum/tech-articles-diy-29/edi-engine-timing-24373/

Tiny Response from danny.lee@neo.rr.com
1 question asked
Replied on January 15, 2012

i can't get to that site cause i dont' belong just do how i said it's the proper way.

Tiny Answered by hmac300 (expert)
17,879 answers provided
Replied on January 15, 2012

It's at the 1. On the distributor drive gear, what would happen if the two 0's aren't aligned I think the very bottom one may be in the rear of the shaft.

Tiny Response from danny.lee@neo.rr.com
1 question asked