Chevrolet Suburban 1500 Problem Report
Chevrolet Suburban 1500 Check Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
After repeatedly getting a Check Engine light after fueling, I took it to a dealership who informed me that the code that showed up when they hooked it up said that I needed a new gas cap. Well, I paid the big $$ there for the cap and a couple weeks later it came on Again!! This time I took it to my normal oil & tire guy who let me in on the real issue (in my case at least!) I hadn't been tightening the fuel cap enough "clicks"!! I might stop at 2-3 & he said turn til you hear at least 10! Otherwise the vehicle senses that as a "leak" in the fuel system, be it fuel or air/compression. This happens quite often in many other makes/models too! Hope this helps someone! - Visitor
The 'Tighten Gas Gap' came across monitor 2 days ago. I tightened gas gap. The monitor reading went away. This morning, the 'Tighten Gas Cap' came up on my monitor reading again. I turned car off for 1-1/2 - 2 hrs.. When I got back in car, started it up, while driving, the engine light came on. Panicking ..... Called a friend for a car repair persons name & they suggested I google the problem. I did. Yippee!! I found this is a 'problem' w/ this make and model year 2004 Suburban. I tighten the gas cap really, really hard & the engine light is no longer on. Thank you! Thank you! for those who've reported the same challenge. - White car
Check engine light came on and would not go off. Repairmen checked vehicle w/instrument and item was corrected - Visitor
Check engine light is still on. Just replaced gas cap. - Visitor
Check Engine Light due to emissions issue that sounds like this one. Tech ran OBD2 scanner on it and found the code related to a fuel system emissions problem. Gas Cap is suspected. - Visitor
been there done that - afvanarsdel
Check engine light stayed on and once the cap was replaced, it stopped. - Visitor
Check engine light came on, took it to the shop & they said code 171 & 172. They said needs new manifold gasket & injector cleaning. Truck has been running perfect. Has 160,000 miles with regular m...
I have a 5.7 V-8 4x4 with 208000 miles.No check engine light. It started to idle rough and the...
Multi miss-fire is occurring on 1 side of the engine, pistons 2, 4, & 6. Spark plugs, wires, ca...
I had just noticed that the "check oil level" message appeared on the DIC. This has never appea...
One or both secondary air injection check valves may become restricted causing poor air flow re...