I left a question on may 8 your title is "2002 Chevrolet Silverado LT with 130,000 miles". I followed his instructions and checked fuel pressure. It was low so I changed fuel pump. This fixed problem for about 10 miles. Truck started doing the same thing, shuddering and dying. I have been through all of the suggestions on the link provided in your reply. I found a couple of vacuum lines that were questionable and changed them. I checked all of the wiring and plugs on all ignition components. After doing this, the truck wont start at all, where before it would start every time it just wouldn't stay running. I went through the ingnition checklist again according to the chilton manual and links at your site. Everything seems fine except I get no spark from the coil (so naturally nothing in line after that either). It has power and trigger signal going to the coil and ignition module and all resistance readings are within specified range. I have changed the coil and the crankshaft position sensor to see if I was missing something. I have been over it several times and don't see anything missing or unplugged. Do you know of anything else I can try, I can't get it to a dealership without paying huge towing fee, so I don't want to do this if it can be helped. Is there anyway to know if it is the pcm?
have the same problem?
Wednesday, June 15th, 2011 AT 6:03 PM