Everything would be cured by restarting the engine I have a 17 gmc sierra 5.3 But not immediately, it needed like 15 seconds of off time to get.
29k-Mile 2003 GMC Sierra 1500 Denali Extended Cab Quadrasteer for sale
Hi, i realize this post is nearly 10 years old, but my 2003 gmc sierra 4.3l has the exact problem to the one you.
Anyone else having this issue
It will randomly start flashing Only does it for a few seconds to a minute It sounds like the misfire gets worse under load In that case, you could have an ignition problem (plugs, wires,.
After this i took the truck for a little drive and started to get a flashing check engine light The truck seemed to drive fine. Got a cel question for y’all Turn on the truck and it runs a little rough then the cel starts flashing
Once you give it a.
A flashing cel indicates a more severe problem, such as an ignition malfunction or engine performance issue. Yesterday i acquired a 2003 silverado with 140,000 miles on the engine Today i was going over the truck and i. Backstory i bought the truck with a new reman 4l60e but 5.3 with 200k miles out
Swapped in a used 5.3 lm7 with 65k. About 2 weeks later all of a sudden cel came back on, same codes as before, but now what i'm experiencing is a flashing. 2004 gmc sierra 2500 hd, 227,000 miles 6.0l v8 While driving up hills or increasing load, the cel will flash multiple.
Common causes of a flashing or blinking check engine light before you get too concerned, consider whether your.
