2005 blazer crank but no start. Tried several things already!
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2005 blazer crank but no start. Tried several things already!
Hey guys and gals..
i picked up a 2005 blazer (4.3L vortec) 5 speed standard trans. 180,000km this summer. It would sputter under load when driving. Then one night I was driving on the highway and it lost all power.. barely made it home (we’re talking 5-10km and no power!)
it sat parked for 4 months until yesterday. I tried to start it. It cranked and cranked but didn’t start.. **if I help the gas pedal to the floor it would try to start.. chugging at 300-600 rpm for a few seconds then died..** I tried pouring a bit of gas in the throttle body, which did absolutely nothing.
I’m a heavy duty mechanic, I figured I could beat this issue but I’m really stumped here and starting to feel stupid for just throwing parts at it.
So so here is what I’ve done today.
-Replaced fuel filter
-hooked up fuel pressure gauge. Showing 55psi when I turn the key and the fuel pump kicks in. It hold that pressure for 10+ minutes when I shut key off.
-replaced plugs, wires, distributor cap and rotor (they were due for change/carboned up)
-I checked timing by pulling #1 plug ang grounding it to the engine block, turned engine by hand until harmonic balancer mark lined up with the notch and saw spark on the plug., and confirmed that by pulling the distributor cap off and making sure the point was at the “6” mark which, from my research indicates cylinder 1 TDC on the distributor..
-changed crankshaft position sensor, and checked for power at the plug.
-checked ignition module plug for power
**apparenty the module was replaced before I bought it, but I can’t confirm that, it does “look new”**
- replaced MAF sensor, as there was codes for that when I first bought it and I thought maybe that’s what caused the first power loss issue when it was still running.
The reason the fella was selling it was because t would not start. He towed it to a shop and they “changed ignition module” and still no luck. So he towed it home. when I went to look at it to buy it.. I plugged in the ignition module and t fired right up! It ran decent for a few months but then the situation as I destabove happened and now it’s not starting.
(Those butt holes at the repair shop left the ignition module unplugged when they changed it!!!)
if anybody has any info I would really appreciate it!
i picked up a 2005 blazer (4.3L vortec) 5 speed standard trans. 180,000km this summer. It would sputter under load when driving. Then one night I was driving on the highway and it lost all power.. barely made it home (we’re talking 5-10km and no power!)
it sat parked for 4 months until yesterday. I tried to start it. It cranked and cranked but didn’t start.. **if I help the gas pedal to the floor it would try to start.. chugging at 300-600 rpm for a few seconds then died..** I tried pouring a bit of gas in the throttle body, which did absolutely nothing.
I’m a heavy duty mechanic, I figured I could beat this issue but I’m really stumped here and starting to feel stupid for just throwing parts at it.
So so here is what I’ve done today.
-Replaced fuel filter
-hooked up fuel pressure gauge. Showing 55psi when I turn the key and the fuel pump kicks in. It hold that pressure for 10+ minutes when I shut key off.
-replaced plugs, wires, distributor cap and rotor (they were due for change/carboned up)
-I checked timing by pulling #1 plug ang grounding it to the engine block, turned engine by hand until harmonic balancer mark lined up with the notch and saw spark on the plug., and confirmed that by pulling the distributor cap off and making sure the point was at the “6” mark which, from my research indicates cylinder 1 TDC on the distributor..
-changed crankshaft position sensor, and checked for power at the plug.
-checked ignition module plug for power
**apparenty the module was replaced before I bought it, but I can’t confirm that, it does “look new”**
- replaced MAF sensor, as there was codes for that when I first bought it and I thought maybe that’s what caused the first power loss issue when it was still running.
The reason the fella was selling it was because t would not start. He towed it to a shop and they “changed ignition module” and still no luck. So he towed it home. when I went to look at it to buy it.. I plugged in the ignition module and t fired right up! It ran decent for a few months but then the situation as I destabove happened and now it’s not starting.
(Those butt holes at the repair shop left the ignition module unplugged when they changed it!!!)
if anybody has any info I would really appreciate it!