Have diagnostic codes checked to see if you have a cam or crank sensor fault. make sure fuel pressure is at the required pressure, just testing to see if you have fuel at the valve is not enough. replace all spark plug wires. if you replaced two then all are just as old and even when they "look good" does not qualify as "they are good". Replace coil pack. start up drive away happy
Just wanted to add, don't forget about the key switch. if voltage isn't at coils from switch then ecm won't be able to fire coils. key switches are a big intermittent problem. Parts of them work while others don't. I don't know if you have a manual or not. Further testing is going to need one for connector pins location for volt testing with key on..
Thanks. Found the actual problem. Looks like a 'golden rock' or something managed to bounce up and hit the plug for the crankshaft sensor. Found it when testing the sensor. Surprised the he'll out of my 10 year old. Showed him how to start the truck with the clutch. Truck fired much to all our surprise while I was watching the meter. He dumped the clutch and stalled out the truck. Crawled back underneath and checked the connection again. Made sure it was secure. All systems go. Thanks.
Nice job! The helper was the key!
×
1,083 views
Usually answered in minutes!
I think I remember seeing a 0340 code and a P174 code (have a scan gauge in truck) can't get codes to show up now. Trying to locate cam and crank sensors. Think I found one. Would the crank sensor problem be intermittent and cause rough running? I noticed this recently on last trip. Codes cleared and didn't come back. Obviously an issue now. That would mean the crankshaft and/or cam sensor affect the coils because both coils don't fire.
×