After running for a while it begins to run REALLY funky, when i come to stops the check engine light blinks and the blazer usually ends up stalling itself out, unless i shift into neutral and press the gas a little. and when i try to go it doesn't want to take any gas and takes forever to get up to speed.
BUT BEFORE THIS
It runs great for an hour or so if I'm holding the gas pedal in the slightest position to keep acceleration but if i let off and try to go again after coasting it doesn't go until it gets in the "honey" spot again, which is usually full throttle or one step under full throttle. and eventually after running for a while is when the check engine light blinks and stalls upon stopping
ALSO
It feels as if four wheel drive kick in or work. The four wheel drive gears go 2Wh, 4Hi, Neutral, 4Lo. when i put my blazer in neutral with my gear shifter and shift my transfer case from 2Wh drive down to 4 Hi its does great but it doesn't feel as if the front tires are grabbing, and when i try to go from neutral to 4Lo it grinds a little if i pull it down. I have slammed it into 4Lo to see if it works and i have gotten in gear, but still it feels as if it either didn't kick in or the front tires aren't grabbing. and when i put my gear shifter into neutral to shift my transfer case outta 4Lo its shifts just fine back up to neutral and even 4Hi or 2Wh. but when i shift my gear shifter into a gear it started making a grinding noise somewhere, so i instantly shut it off and put it into neutral on my gear shifter and kept it in 2Wh. it started and drove away fine. but the gas issues is my majority of problems right now.
Leaks both tranny fluid and oil from the front main seal. but i keep up on the fluids checks and adding regularly. but it became to expensive and now is parked.
IDLE Sentsor
Testimonial: "if its the idle sensor would it make my check gages light blink? "
SOURCE: "gear grinding" noise on acceleration, 2 wheel high only
You need to get the truck in the air on a lift, properly! and put it in gear and listin w/ a stethascope, you'll find your noise.
SOURCE: 1996 suburban makes grinding noise in 2 wheel drive
sounds like the clip on the rear output shaft its probably broke. do this by removing the rear driveshaft, and the tail of the transfer case, there are 4 bolts holding it in place. then grab the output shaft and see if it has any front to back movement. if so pull it all the way to the rear and you should see a groove at the front part of the shaft where the clip goes. Then you should find the pieces fo the clip in the tail housing. One person said he found the replacement clip at a local tranny shop. I am calling the dealership parts counter for a new clip for my 97 Tahoe tomorrow. Hope this helps..
SOURCE: 4HI and 4LO light flashing 2000 Blazer LT
it is very possible that a wheel speed sensor is open or reading erratic, causing the ECM to override the 4WD switch. Borrow/rent/buy a scanner that will tell you this info,
SOURCE: 2004 Blazer won't shift into four wheel drive. I
ok what i would try is put the truck in park then try to **** into your 4wheel drive high or low, other than that with the computer thats on board you may just have a technical issue that can be solved at the dealership
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Do you think its just a Vacumm line leak?
Vacumm leak i agree! But if you rear main seal is leaking bad? You are losing oil presser! needs to be a sealed unit!Or engine i should say!Plus it could be a thrust baring if the noise gets worse in 4x4 Driving
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