Hello, new member here.
I have and am continuing to search on this subject, but in kind of a rush, my grandmother is in the hospital and I have to go to my Aunt's funeral tomorrow. To top it off, I think I threw a rod in my camaro while running for parts on this problem. Seems like everything is dying on me right now.
Sorry about the SOB intro there, to the topic:
Truck: 1993 Chevy S10 Blazer 4wd CPI Vortec.
Monday morning driving along at constant 55 mph, truck just dies. Pull over to side of the rode and after about 3 minutes, fires up and drives for about 1/4 mile and then dies. Will not fire after this. Wife picks me and takes me to get Iroc and I go to work. Go back at 2:00 pm, fire truck up and runs for ~1.5 seconds and dies. OK, I think it's the fuel pump. Have the truck towed home, put fuel pressure gauge on and get a constant reading of 58psi (spec is 54-62) so that is dead on with no bleed down.
I hooked up my laptop after this and got no codes. TPS output normal. Pretty much everything was normal on the scan, but no start.
Took the Ignition module and had it tested, passed 10 tests, so hopefully eliminated that. Put on new dist cap and rotor. Fired up and ran for 3 seconds then just cuts out. Pulled the plugs and they were saturated. Thought I must not be getting enough spark.
Well, installed new coil, put plugs back in and fired her up. Ran for 30 seconds and then died. Could a faulty regulator cause the injector to flood the engine? (to much pressure). Will take a look at the s10 site. Hoping not to have to replace the injector assembly as that is costly. Thanks for your help and the S10 site info.
When it cuts out, it just shuts off. No stumbling, hesitation and all power still working (lights, gauges and can here fuel pump running).
Any suggestions. Could it be the injector unit?
Sorry if this is choppy sounding, I'm cutting and pasting from posts and emails from Thirdgen.org. Any and all help is appreciated.
Sparks a flyin'
More background: On 12/24/05 the truck started running really erratic, stalled and tripped a DTC. Got it started and drove home with it still running very erratic. (thought it was the fuel pump then, too). Checked fuel pressure then and had proper fuel pressure. I hooked up my laptop and started scanning (using EASE diagnostic system). DTC was 32 EGR. Ok, I thought, just go get an EGR and replace it. Well before I did, I reset the code with EASE software. Low and behold, everything cleared up and the truck has been running perfectly until Monday's events.