Question about Chevrolet Blazer
The car was working great till placed in 4 wheel drive low, at the desert. Then when placed back in 2 wheel drive, it won't accelerate past 30mph and the check engine light flashes
A flashing check engine light means the engine is misfiring. This flashing light will eventually set a code in the low 300's. When you get the code it will tell you which cylinder. If you get a straight 300 it means multiple misfires. Right now if the light is only flashing, check the secondary ignition for loss of integrity. It's more than likely there. I hope this helps.
Posted on Mar 30, 2014
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Posted on Jan 02, 2017
For a temporary fix so the car can drive, remove the fuse for the four wheel drive. it won't actuate the four wheel. The car is always in 2wheel drive. the fuse is located under the hood, the very right side of the of the fuse box, the third fuse up from the bottom. This can be checked in the owners manual. When I need four wheel dr I place the fuse back in. I haven't fixed the problem yet but can drive it 2wheel on the road. think it is the control module for the four wheel dr located under the dash board behind the glove box. Dealer part for $450, I would rather install and remove a 10cent fuse
Posted on Jul 29, 2008
yes you have to drop the tank. you will also need a fuel line tool to unhook the fuel lines. before you drop the tank see if tou can reach and wiggle the electrical connection on the top of the tank. these pumps have a pigtail issue. please rate
Posted on Dec 08, 2008
Pull the kick panel on the passenger side. there is a small box mounted there that is the computer that controls the actuator for the 4wd system. this is notorious for problems due in fact that the connector likes to pull out and away from the module. I had the same problem and the solution is simple.. take a long zip tie and get it between a few of the wires and around the module. tie it in and have a nice day.. it wont come off or try to pop out anymore and you should have no issues getting into 2wd, 4wd h, 4wd L.
Posted on Jun 21, 2009
Two things maybe your problem:1 .Front axle actuator to engage 4wd is not releasing. 2. Front axle u-joint needs replacing. Lift car on jacks with front end off ground. Then spin tires by hand as fast as you can and see if you hear the noise and where it is coming from ( spin in both directions).
Posted on Feb 05, 2010
Testimonial: "Thank you! It was the actuator that was causing the problem."
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