Question about 1994 Chevrolet S-10 Blazer

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94 s-10 blazer 4.3 cpi loss of power, no brakes

I have replaced everything I can think of and checked all of the vacuum lines to try to solve this problem. I read on another site that the persons computer plug-in was corroded and when they cleaned it the problem was fixed. Is this a problem that happens with this model? Also, is there a way of getting to the computer without taking the entire dash apart?

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This is not a problem with these models, but the injector drivers in the computer are a problem. Pull your glove box down, look behind it to the right - that's where your computer is. Hope this helps. PHil

Posted on Jan 21, 2009

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2000 blazer hesitates from a stop when accelerated


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Vacuum line diagram


Hi there:On 1995 CHEVROLET TRUCK BLAZER 4.3L CPI 6CYL check this...

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Fig. 30: Engine vacuum schematic - 1995 4.3L (VIN Z) engines



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I have a 1995 Silverado 4x4. The 4WD will not engage. Someone told me it may be the actuator for the transfer case. When I try to shift into 4hi, nothing happens. When I try to shift into 4lo, it grinds...


I HAD A BLAZER WITH THE SAME SYMPTOMS REPLACED THE TRANSFER CASE MOTOR AND SOLVED PROBLEM. TRANSFER CASE MOTOR SHIFTS FROM HIGH TO LOW GEAR IN THE TRANSFER CASE AND TELLS THE FRONT ACTUATORS TO INGAGE FRONT HUBS . MOTOR WON'T MOVE TO 4 HIGH AND GRINDS WHEN TRYING TO MOVE TO 4 LOW, TRANSFER CASE MOTOR FAILING . CHECK VACUUM LINES AND ACTUATORS ON FRONT DIFF THEY FAIL, CAN CHANGE TO CABLE ENGAGEMENT INSTEAD OF FAILURE PRONE VACUUM ACTUATORS.

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Starts fine, but then bogs out when accelerating, practicaly have to give it no gas and creep up to speed.Doesn't want to go up hills. Just replaced the cpi, fuel filter and fuel pump 3 months ago. Also...


Check the fuel pressure regulator and the EGR valve, I would check the fuel pressure regulator first and go from there. Good luck and keep me posted. Not sure what the pressure should be but thinking it's 62 to 65 PSI upon start up and should drop 5 PSI when engine running, check the vacuum line to the regulator.

Dec 09, 2009 | 1993 Chevrolet S-10 Blazer

1 Answer

I have a 93 s-10 blazer the 4 wheel drive is not working i think its a vacuum line where are they located


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Know if my 95 chevy blazer has a spider CPI?


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My 2000 chevy blazer is stuck in 4lo any ideas what the problem is


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2 Answers

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1 Answer

94 s-10 blazer lost power and brakes


sounds like your problem is your injector there is a cap on your upper intake that comes off pull it off take a flash lightlook down into the intake if it's got gas in it thats your problem. good luck Phil.

Jan 18, 2009 | 1994 Chevrolet S-10 Blazer

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