Sensors problems

Sensors: Electrical device that measures the different performance parameters of the car.
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Electronic stability sensor

Chevrolet Blazer 2020  98000 miles
ESC sensor brings on check engine light and has recently interfered with power steering
Hamath from United States 4 months ago  
HA
1 report 
Amber M from United States 4 months ago
I have the same issue. My car now freaks out when it happens. The ESC service will show up and the it will turn on all the service lights, turn on my parking break while stopped at a light and the light goes off, and it is now draining my battery when I get home. I tried to take it in to get looked at, but because it wasn't doing it and I had to charge my battery back up before I went it reset all the codes or something. My Chevy app says to service 5 different things. I love my Blazer but it is now getting dangerous to drive it and I dont know how to fix it.
1
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02 sensor keeps burning out

Chevrolet Blazer 2000 V6 212647 miles
When I start the blazer the 02 sensor fuse pops.
Berta from United States 4 months ago  
BE

Dash coolant sensor problem

Chevrolet Blazer 1997 4.3l 4door 4wd 250000 miles
Replaced thermostat and water pump heat gauge on dash starts at hot and sticks there what could be the cause and solution
Brad1983 from United States 6 years ago  
BR

Turn over but won't start...

Chevrolet Blazer 2001 Chevy blazer, 2wd, 4.3 180000 miles
So every day when I first start to crank my blazer, (2001 Chevy blazer 2wd, 2door, 4.3) the motor will turn and turn but not start. If I spray starting fluid through breather and try to start it will crank and run until I cut it off. If it sits for a couple hours it will do the same thing, wont start til I use starting fluid. Rarely sometimes it will crank the second time without fluid. I've changed crank sensor, new battery, cap and rotor, it has ngk iridium plugs, new wires, checked fuel pressure which is at 62, new fuel filter, pump does engage when key is turned. I have fuel, spark, compression. I'm out of ideas. Please help
Hokie5 from United States 7 years ago  
HO
5 reports 
Jimbo from United States 7 years ago
Did you check the fuel pressure while it was running, or while it was cranking trying to start? Some pumps when they're going bad will not supply enough pressure to start while cranking, but will while they are running
Krey603 from United States 5 years ago
It sounds like the Mass Airflow Sensor is bad.
Mudslinger from United States a year ago
I have a new fuel pump and spark plugs and wires but he still won't start. Makes a winning sound when trying to start. When he tryes to start it back fires
Krey603 from United States a year ago
I believe timing is way off after all the parts you have replaced. You definitely need to get it on TDC for #1 sparkplug and then make sure the rotor is pointing at the #1 plug wire in the cap. Something similar happened to a Blazer I had just from pulling the distributor rotor out and putting it back in. It turns out that because of the way the gears are cut. When it slides out it turns just a little ahead. When I put it back in I had to start a little before #1 position. Then when it was all the way down it lined up perfectly.
Bones from United States a year ago
My 1998 Blazer won't start or hit a lick but turns over just fine,what can be my problem?
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Wont keep running

Chevrolet Blazer 1999 4dr 4.3  245000 miles
Ok so truck turns over and starts but wont keep going over and over i can hear fuel pump on / off if i giv gas kills instant no gas 1 to four seconds obd says six sensors othrs say fuel pump on way out to far gone or paslock thing in ignition if is sensors or bfor i go get is ther some sorta resset or maybe it means its the relay maybe plz respond and thx you
bubbs from Canada 7 years ago  
BU
2 reports 
stsa from Canada 7 years ago
1 check basis fuel level, oil level, engine coolant condition and level {at the rad) , battery condition and CONNECTIONS this is more important than the average guy realises. , check spark at the PLUGS, check fuel volume and pressures...with a gauge , scan for OBD2 code document codes numbers order of the codes and how many of each code and keep them in order. Check all fuses look for burnt, corroded and loose. This will start u on a proper diagnostic path... as far a security system and paslock very possible i have repaired , replace many of the systems over the last 40 years do the. Basics first... DO NOT believe the OBD2 codes often codes are set due to dead battrerys ,loose ,dirty battery connections boosting, pulling wiring off sensor, wet or corroded fuse box (they r not just a fuse box anymore)...
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Wont shift out of 1st

Chevrolet Blazer 1993 K10 blazer 200000 miles
My blazer goes jnto park nuetral and first drives fine dont slip but if i go faster and try to go into any other gear higher it just stays in first was told it was a shift sensor but when i call a auto store they say soleniod so not sure
Shmam from United States 8 years ago  
SH
4 reports 
Dylan from United States 7 years ago
I have the same problem. No Speedo. Won't come out of first gear any ideas
Shmam from United States 7 years ago
Traded mine they just put a new transmission in it
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Stalling issues

Chevrolet Blazer 1993 K blazer 275365 miles
I have 1993 K Blazer that seems to stall when its hot and humid out... I have put new motor that now has about 60,000 miles on it... I have replaced map,sensor,egr,distributor,plugs,wires,coil,vacuum lines,fuel pump, fuel tank because it had a hole, vents in tank, fuel filter and many other parts and noone can still seem to figure out why i have intermittent stalls... It could be on interstate, at red light, stop sign it just will stall and start back up... It always seems to do it when it is hot and humid or just started because i didnt have this problem over winter or spring... Can someone please help me
Samjr from United States 8 years ago  
SA
13 reports 
fisherman" from United States 7 years ago
Fuel vap canister or electric purge valve have u checked those?
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Starting/fuel issue

Chevrolet Blazer 2000 Blazer 100000 miles
My 2000 Chevy blazer 4.3liter has to keep cranking on and off takes like 20 mins and it starts up and will idle but when you give it gas it will act like it wants to die. Has a new fuel pump, filter, plugs, wires, map sensor, fuel pressure regulator, changed spider, crank sensor even after all that they turn the switch on and off and after about 15 times it will finally fire up and sit there and idle just fine and after it sits about 5 mins and you give gas it acts like it will die then let off and it idles again. Tried to unplug throttle position sensor and could give gas but when let off acted like it wanted to die put back in and same idles but acts like it wants to die and it back fires. What could it be
Tenney from United States a year ago  
TE
1 reply 
Bruce from United States a year ago
There are a few potential issues that could cause the problems you described with your Chevrolet Blazer. Some possible causes could include a faulty mass airflow sensor, a clogged fuel injector, a malfunctioning fuel pump or fuel pressure regulator, or an issue with the ignition system such as a faulty spark plug or ignition coil. It's also possible that the problem could be caused by a fault in the engine control module or other electronic component.
To troubleshoot the issue, you may want to start by checking the fuel pressure at the fuel rail using a fuel pressure gauge. If the fuel pressure is within the manufacturer's specified range, you can try cleaning the fuel injectors using a fuel injector cleaning kit. If the fuel pressure is low, you may need to replace the fuel pump or fuel pressure regulator.
You may also want to check the mass airflow sensor and make sure it is functioning correctly. If the mass airflow sensor is faulty or dirty, it could cause the engine to run poorly or stall. Other components of the ignition system such as spark plugs and ignition coils should also be checked to ensure they are functioning properly.
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Transmission?

Chevrolet Blazer 1998 utomatic, v6 200000 miles
Suddenly started running at 3000rpms at 65mph. Not sure if shift sensor would be problem or not. Please any answers!!!
Harmony from United States 6 years ago  
HA
7 reports 
Black blazer from Canada 8 months ago
I have the same problem it does not go into overdrive , 4th gear. My scanner says shifter relay but there are at least 3 different relays concerning shifting
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Power loss after gets warm

Chevrolet Blazer 2002  150000 miles
After blazer warms up it looses power r p m jump up. Can put it in park and excellerate and it has no power. Can this be an 02 sensor or what can cause this.
Jenny from United States 8 years ago  
JE
8 reports 
Tonia from United States 7 years ago
I just baught tgis 96 blazer and had no brakes. And now its back fireing dyen and loud. Bet its censor
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Sputters when motor is cold

Chevrolet Blazer 2000 Chevy blazer 4.3L 187000 miles
My 2000 chevy blazer sputters first thing in the mornings. Once motor is warm car runs just fine. Chevy dealership said its sucking in too much air And to change the air intake and/or the mass airflow sensor. Well both have been replaced and the car still sputters. I dont know what else to do.
Cracken05 from United States 7 months ago  
CR
1 report 

Shifting problems

Chevrolet Blazer 2002 O 190000 miles
My 2002 Chevy blazer is having a hard time shifting into 2nd and 3rd gear it kinda slams into the gears. I changed the vehicle speed sensor and had no luck...any idea on what it could be ?
Rue21 from United States 7 years ago  
RU
4 reports 

Blow back off engine

Chevrolet Blazer 2001 Engine 2000000 miles
Yes I have let someone work on my blazer. Let start right here for one thing can we put sensor off of a v8 on a v6. The problem is we are having some blow back wen go o start it. He had took part off of a a V8 Tahoe on a V6 Blazer can the parts work the same
Jeri from United States 7 years ago  
JE
4 reports 

Headlights quit working

Chevrolet Blazer 2004  167000 miles
Headlights quit working... All other lights work... Fuse and relay is good. Maybe sensor?
Coley from United States 8 years ago  
CO
23 reports 

Oxygen sensor p0154

Chevrolet Blazer 2001 Chevy blazer vortec 134545 miles
Blazer runs great no. Symptoms at all really. I had. Change the sensor and the service. Light is still on...it has a new one on that side and switch the old one on the opposite side and the light had turnd off but i scanned it and still says the code. Not sure what to do next
Drew from United States 8 years ago  
DR
1 report 
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