AboutRobert Summers Expertise domestic auto/truck repair, auto body, painting. I currently own a large auto/truck/marine repair shop. 40 years certified 310S,310T,310B in ontario Canada
Experience 40 years certified 310S,310T,310B ontario qualified, 7 years with GM have owned my own shop now for the past 27 years.was automotive marketing director for large auto parts supplier.
Organizations CFIB (current) past member AARO and APAA.
Education/Credentials grade 12 plus 2 years college. many aftermarket training courses
Question 1997 chevy 1500 5.7 truck starts and idles fine when cold after a few minutes it starts to buck and stall if you are driving down the road it wont stall unless you come to a stop but it bucks badly engine code p340 camshaft sensor is the only code I changed the distributor because i thought the camshaft sensor was in the distributor but it still runs the same if you have any ideas let me know thanks keith
Answer Hi Keith... make sure you don't have a timing chain problem....you changed the dist, was it new one or used... did you check the ign module. another known problem on these trucks is the dist cap and rotor...be sure you don't have a cap that is cross firing inside after warm up....check wiring going to the ign module, the dist, the coil for any areas that are frayed and touching ground... make sure that ign module is not heat sinking...(check to see that it has silicone under it to isolate it from heat) make sure dist shaft bushings are ok if you used a used dist...check temp sensor is reading correctly as that can affect how truck runs.... hope this helps
