Coil problems

Coil: Electrical device that creates the sparks that can be seen in spark plugs.
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Turns over but wont start

Chevrolet Blazer 2000 4.3l 179567 miles
I'v changed my timing chain and now it wont start i'v put in a new cap, rotor, distributor, spark plugs, and wires cam and crank censer , coil, and still no spark i'v checked my plugs for voltage and that's good checked the pcm and thats good any ideas because im stumped thank you
minks from United States 6 years ago  
MI
Rank 7
2 reports 
Bubba123re from Canada 6 years ago
Had same issue try removing O2 sensors from manifold should be two if starts catalytic converter plunged, OBD codes PO300 random misfire and PO101 mass air flow sensor because of restricted exhaust
minks from United States 6 years ago
No OBD codes ,securite on dash constantly on catalytic converters are new
Bubba123re from Canada 6 years ago
Sounds like you have hit all the bases except fuel. Inexpensive fuel test gauge hook up and turn key to on should read at least 60 PSI. Crank engine and see it pressure goes down bad fuel pump or regulator if doesn't hold over 55 PSI
minks from United States 6 years ago
Fuel pump is new and i got pressure
Buddha from United States 6 years ago
Check your icm module that connects to the pick up coil under the distributor coil
Gord from Canada 5 years ago
Check your position of your cap it could be timing
Bubba123re from Canada 6 years ago
Did the truck run before you changed the timing chain if yes you may have to revisit that repair as all your issues seem to have started after that, if no than you have to start still have to re-check spark and distributor timming.
minks from United States 5 years ago
I have rechecked everything 4,5,6 times over on my dash the security light on the dash is on and stays on never goes out.
Eckowidow88 from United States a year ago
Bet it had to do with your keyfob or security chip/dead battery possibly.
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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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Won't start

Chevrolet Blazer 2001 2 door 4WD 180000 miles
Unplug wire from coil to disturber and crank engine see spark at coil what is wrong please help
Scott from United States 7 years ago  
SC
2 reports 
Scott from United States 7 years ago
Canged coil waited one full day and stated right up and no problem since
Blazer27 from United States 7 years ago
Check your distributor cap, mine did the same thing
Scott from United States 7 years ago
New battery was installed
Scott from United States 7 years ago
Going to change cap,rotor,plugs,wires it starts up now just every now and then it act's up
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Engine dies while driving

Chevrolet Blazer 1999 ,vortec v6,4.3 237565 miles
Iwas having trouble with it starting. I replaced engine control modgule two weeks later it went out again I relaced it again. Oneweek later it lost its spark again. This time I had two change out coil pack. Now while I'm driving it dies. And it stsrtes right back
Ponchito Rievera from United States 6 years ago  
PO
1 report 
Robert from United States 6 years ago
So what was the problem with it did you ever find out
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Electrical failure

Chevrolet Blazer 2001  250000 miles
Good afternoon, I would be glad if anyone could help me with my problem. My car had a failure in the fuel pump's fuse, and at the whole fuse box was replaced by a new one. That was the moment when a strange electrical failure appeared. I've already bought three batteries and a whole fuel pump and the problem is still there. It has happened only once that it started and lasted on for an hour and then stalled. I've also changed the coil and the module but it is still failing.
Beth from United States 9 years ago  
BE
8 reports 
Margie from United States 9 years ago
Have you checked the fuel pressure's regulator?
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No spark no fuel

Chevrolet Blazer 1989 4x4 4.3 150000 miles
I've reworked my fuse block and no I'm having a no spark/ no fuel prob. This vehicle was running prior to my working on the fuse box. Checked the coil, ign. Mod. Pickup coil is everything looks good. It must be a prob. With my wiring @ the fuse box??
rick from United States 4 years ago  
RI
1 report 
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