I have a 1989 S-10 Blazer with a 4.3 TBI that original symptom was spitting and sputtering and would not hardly move.

Asked by Feb 07, 2015 at 03:37 PM about the 1989 Chevrolet Blazer

Question type: Maintenance & Repair

I pulled a 33, (MAP Sensor error), I replaced plugs, cap and rotor, spark plugs and wires. It ran pretty god except when you would jump on it, it would then spit and sputter until you let off a little. Then driving it at 35 mph it just died and would turn over but not start. Had no spark from the plug wires or even from the coil, replaced coil and module, not change. Pulled codes 33 & 34 so finally replaced map sensor, no change. It has no spark from coil but 12 vdc is there, it also has no fuel thru the tbi but when I sprinkled fuel in it while turning it over no change. HELP PLEASE

9 Answers

16,185

Code 33 and 34 should never happen together unless there is a short in the wiring or the ecu has fried

Thanks for the response Andrew, would that cause no fuel thru the tbi? I hear the pump run when the ignition is turned on but none out of the tbi when turned over and/or pump the gas pedal.

Ok, time for a update, I do have fuel entering the tbi but they are not spraying at all, and still no spark. I don't know that the fuel pressure is right but if it is not, does the computer monitor the pressure and when wrong tell the system not to spark? If so the this explains all symptoms in my simple mind! Help Please!!!

16,185

No, it can't monitor pressure. Try having your ignition module tested. It's under the dust cap and rotor held in with 2 screws. It acts as a cam sensor. If it goes bad it doesn't know when to fire anything

Already replaced it, no change!

Only thing I have not replaced is the fuel pump & filter

Can the Crank Shaft Position Sensor cause these symptoms?

16,185

It's possible

Thanks for your help Andrew, finally got it fixed. It was the pick up coil in the distributor. I guess the ECM sensed the error and was telling the injectors not to spray fuel.

Your Answer

Add photo

Related Questions

  • 1997 Chevy Blazer not getting fuel 28 answers

    The other day I was unable to remove the key from the ignition, the key would not turn back to the of position to where I could remove the key. The truck sat for a day and a half until I removed the p...

    1997 Chevrolet Blazer 2 Door LS

    -

    Maintenance & Repair

  • transmission shifts good when it's first started then losses gears on 96 blazer s10 2wd 7 answers

    just wondering if i need to replace transmission or if it could be something else, shop said it was internal and wanted $2300 to repair is this for real?

    1996 Chevrolet Blazer

    -

    Maintenance & Repair

  • 2000 chevy blazer no heat and does not seem to be any coming from thge engine. 9 answers

    Chevrolet Blazer

    -

    Maintenance & Repair

  • Not want to start 12 answers

    My dad owns a Chevy 1999 blazer v6 4.3 and does not want to start when he turn the key it makes this click noise but its trying to start but it can't we change the battery and still its doing the ...

    1999 Chevrolet Blazer 4 Door LS

    -

    Maintenance & Repair

  • Possible Fuel issue 1992 Chevy Blazer TBI 5.7l 4 answers

    Having troubles with my Blazer, runs fine when at idle, can rev the motor up while in park, neutral or even in gear but only while the vehicle is not moving. Once I'm on the road driving, the truc...

    1992 Chevrolet Blazer Silverado 4WD

    -

    General

Blazer

Looking for a Used Blazer in your area?

CarGurus has 1,364 nationwide Blazer listings starting at $1,295.

ZIP:

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,700
#2 yetilikesbeer
yetilikesbeer
Reputation 1,060
#3 dandyoun
dandyoun
Reputation 650
View All

Related Models For Sale

Used Chevrolet S-10
9 Great Deals out of 1,636 listings starting at $2,450
Used GMC Jimmy
308 listings starting at $2,750
Used Ford Bronco
225 listings
Used Ford F-150
3,391 Great Deals out of 203,570 listings starting at $1,273
Used Chevrolet Camaro
645 Great Deals out of 39,147 listings starting at $2,995
Used Chevrolet Suburban
715 Great Deals out of 21,977 listings starting at $2,100
Used Chevrolet C/K 1500
1,055 listings starting at $1,999
Used Toyota 4Runner
380 Great Deals out of 20,140 listings starting at $2,499

Used Cars For Sale

2005 Chevrolet Blazer For Sale
12 listings starting at $2,999
2003 Chevrolet Blazer For Sale
108 listings starting at $1,699
2001 Chevrolet Blazer For Sale
188 listings starting at $3,850