Okay, thanks guys. I don't have a hissing sound at the exaust, so I guess it's time for injectors and a pump. I appreciate all the info! If anybody has experience with these upgraded injection pumps, I'd love to know the increase in lifespan.
The truck is at 280,000mi and has had multiple IPs and injectors over its life time, according to the PO. When I got it it had a bad misfire and smoked like crazy. I replaced the bad injector (Napa) and although better, its still not right. Do I need to invest in Injectors/IP from type4 or am I...
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