Does seafoam cause rough idle?
Sea Foam High Mileage is specially formulated for vehicles with 75,000 miles or more—those at the greatest risk for engine idle problems. If your vehicle has been sitting unused for a long period of time, fuel evaporation and degraded fuel might also be a reason for idle issues.
Can I use sea foam in my truck?
Sea Foam works in fuel and oil systems to clean and lubricate critical engine areas. Made from petroleum ingredients, Sea Foam is safe and effective when used in any gasoline or diesel engine. The 20 oz. Truck and SUV size is great for treating larger vehicles!
Will seafoam fix collapsed lifter?
Hydraulic lifters can collapse, with no oil cushion to dampen the pounding from the tappet or push rod. Seafoam CAN be used in the oil. However, it’s not going to fix a lifter tick.
Does seafoam clean lifters?
Sea Foam works to dissolve and liquefy petroleum deposits that grow to big and sticky to drain. Use in gas or diesel oil crankcases to safely clean and quiet noisy lifters, cleans chain tensioners, actuators, VVT solenoids, oil control rings, and cleans out oil passageways. Cleaner engines last longer!
Why is my GMC Sierra running rough at idle?
These packs are fired by the engines computer at exactly the right time to provide the optimal ignition timing. If a coil pack goes bad, it’ll cause a misfire and rough idle condition. Really, your Sierra will be running rougher at any RPM, but a misfire will be most pronounced at idle.
What should the idle rate be on a 1997 GMC Truck?
Underdog, I don’t know the 1997 5.7, but 1000rpm sounds like a high idle, not where it should “bottom out”. A V8 should idle at 500rpm. GoNDown, did you recently disconnect your battery? After I left mine dead in the yard for a while and didn’t charge it, when I started it up it ran like you describe for a few days and then it was fine.
Where can I find rough idle solved for free?
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How can I Make my Chevy Silverado idle smooth?
I decided to use seafoam spray ( https://seafoamsales.com/sea-foam-spray/) into the intake, let it sit for about 8 minutes. Drive the piss out of the truck and now my idle is smooth as silk and looks like the instant MPG is better by about 4-8MPG.
Why does my GMC Sierra 1500 have a rough idle?
What are common reasons my GMC Sierra 1500 has a rough idle? While there are a variety of reasons your GMC Sierra 1500 has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil.
Underdog, I don’t know the 1997 5.7, but 1000rpm sounds like a high idle, not where it should “bottom out”. A V8 should idle at 500rpm. GoNDown, did you recently disconnect your battery? After I left mine dead in the yard for a while and didn’t charge it, when I started it up it ran like you describe for a few days and then it was fine.
What does it mean when your car Idles smooth?
Smooth idling indicates that your engine’s fuel and air are mixing just right. What is rough idling? If your vehicle’s idle is rough, possibly rising and falling, or having difficulty maintaining a steady rate of rotation, you may have a problem that needs fixing.
Rough Idle Solved! Sign up for FREE! Become a GM-Trucks.com Member Today! In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs.