1999 Suburban
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CF Beginner
Joined: Oct 2020
Posts: 1
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1999 Suburban
Good morning I have a 1999 suburban with a 5.7 Vortech l. Looking for some insight as to the popping and back firing that I'm getting while driving down the highway at around 1800 rpm . If I'm cruising around 50 to 55 miles per hour and I take my foot off the throttle and lightly press back on the throttle the engine pops and backfires any idea where I can search for the problem
CF Monarch
Joined: Oct 2017
Posts: 4,605
Likes: 269
From: USA
Good morning I have a 1999 suburban with a 5.7 Vortech l. Looking for some insight as to the popping and back firing that I'm getting while driving down the highway at around 1800 rpm . If I'm cruising around 50 to 55 miles per hour and I take my foot off the throttle and lightly press back on the throttle the engine pops and backfires any idea where I can search for the problem
