Top 20 1996 Chevrolet Blazer Questions & Answers

not S10 dead hv coil means input to coil is dead. on this car, 1996 we look at the distributor wiring ,et al. to know what's up with that. and fuses tops the list all EFI AND spark fuses. and ecu.(VCM) the VSM needs 5 good fuses !!! #4,5,9,10,12 then learn to scan the VCM on any 96 or newer USA car it has the new the OBD2 scan port (16pin) just like now. see DTC errors cranked, p03xx errors are all that. CMP error , CKP errors end spark for sure. crank sensor or cam senors, 3 wire HALL sensors and there and the best kind is HALL. the VCM (ecu/pcm) fires the spark control modlen and it the HV coil. if CMP and CKP are not dead. crank for 10second (release not off) and release. if either 2 sensor fail now the scan tool tells you so.. DTC p03xx code errors. cam must spin, and not be timed by kids.(or hold my beer)

• bad fuses (x5)
• bad cmp/ckkp (dead cam timed all wrong)
• bad spark control module
• bad HV coil
• bad wires to all this. page. of listed things.
• bad VCM (if obd2 fails consider this, if no COMMS)
• rusty or loose connectors

is CEL/MIL/SES lamp in cluster dead it must glow keyon. or lamp dead, vcm dead or fuse to ecu x5 dead. hint1,use modern scan too, not one from 1996 era many the only did 1 or 3 uSA cars then, (lack of 3 ports is why) all; modern tools work here, 2005 year up

Bad fusible link

If one of the mounts for the headrest has a push button you push to adjust it up or down, then the other mount will have a pinhole on the inner side. It is big enough to insert a small Allen wrench. Push it inwards to release that latch and work the headrest upwards, pressing both latches as you go.

Are you using a good set of spring compressors. Get the spring good an squashed. Step back - analyze, is there anything that keeps the ball joints, springs and shocks from seating properly. Does the new ball joints look exactly, and I mean exactly like the old ones

How long since a tune-up? Any applicable trouble codes? If you have the spider fuel system, that system is known for problems. I'd probably use a gage and check proper fuel pressure. Could be other issues? Intermittent can be a pain to track down.

I would think the CAT. they tend to clog and make a rattling sound when driving .Seeing you say you did fuel lines witch is another issue with the vehicle in a snowy part of the country they rust out but your fuel pump must be working because who ever replaced the line would have known if the pump was bad they last 10 years then you have to up grade to the new pumps I'm not going to get in to that now.The only other thing it could be is the fuel regulator in witch case just replace all of the injectors and the regulator comes as a unit .But I think its more then likely the CAT is clogged .

seeing as you just changed the pump, can you hear the pump cycle when you first turn the key on? if not check all your plug in wire connections one my not have been in properly and came loose, hope this helps

Could be the fuel pump is not providing the proper fuel pressure ! Fuel psi less than 50 psi no start GM CPI Vortec

next time u go to start it in the am get in the truck and turn the key to on and listen for the fuel pump turning on for about 2 seconds if not before u go to replace the fuel pump replace the fuel pump relay in the underhood fuse panel common problem good luck lets hope for a cheep fix

get the unit from a wreckers /junk yard for a 1/4 of the price

Your thermostat is sticking or your radiator or heater core is blocked up. If you keep running it like this you will blow the head gasket or worse (warp the heads or block.) if it's not already the case.

May have been water or debris pulled into the injectors from running low on fuel . I would run it on some short local runs and a few fullness throttle bursts and see how she does . My favorite Chevy and a beautiful car .

That's a pretty big ask Deb. You're talking dozens of pages. Read this post on where to get wiring diagrams and what's involved in getting the right one. http://ricksfreeautorepairadvice.com/get-car-wiring-diagram/ How to get car wiring diagram Ricks Free Auto Repair Advice

No ! Do you know how to test electrical circuits ? Use a DVOM - digital volt ohm meter ? Use a wiring diagram to pin point areas for testing in a wiring harness . Fuel pump electrical circuit diagnosis no fuel pressure testing GM The #9 fuse powers the ECM , fuel pump relay , fuel pump switch , engine oil pressure sensor .

For blower motor, check these fuses. As you can see two fuse go hot with the key on, one is hot all the time. Not only check the fuses, use a test lite and voltage on fuse circuit.

the front drive shaft when locked in 4 WD does drive the front diff that inn turn drives the both front wheels if both have the same amount of traction if one wheel is off the ground then the other will spin at twice the speed as that is what a differential is designed to do now if you have a problem diff center ( broken teeth etc ) the there will be awful noises, clunks and bangs as the teeth from the pinion and crown wheel mismatch and hit on each other no noises when in 4WD indicates a good diff center the next problem will be a broken axle at the splines into the diff center spider gears ( same as one wheel off the ground or in a bog) the only wheels doing the driving are the rear wheels next are the "u" joints or cv joints but again there will be lots of noises involved lastly and the most frequent is the drives at the hubs depending on the hub locks you have it will not n be locking in one or both wheels due to faulty actuator , dry damaged locking mechanism, stripped splines or not manually engaged understand this --unless you have limited slip differentials or diff lockers on the vehicle any 2 opposing wheels or any wheels on the same side that have lost traction and regardless of being in 4WD or not you will not be going anywhere so to fix --start at the drive hubs both sides to check actuation , engagement , then work back into the diff

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dont understand why you posted this

check operation the throttle control motor or cable if used ( broken /missing return spring

This truck should not be operated on the street in 4WD mode. You need to investigate the front axel CV axel shafts as well as the outer axel carrier bearings. Damage to front brake rotors and possible lock down while operating the vehicle. Safety hazard exist, so do not drive until axel and bearings are checked and repaired