What causes a Chevy Silverado engine to surge?

My 1999 silverado with the 5.3 engine. the motor will occasionally surge at crusing speeds between 40 and 60 mph. I figured out how to induce it by letting off the gas and quickly giving it 1/4 throttle and about half the time this will cause the engine to surge.

What’s the average speed of a Chevy Silverado?

Engine surges when throttle is held at a constant speed around 50 -55 M.P.H. 1 year later… Engine surges when throttle is held at a constant speed around 50 -55 M.P.H.

What are the RPMs of a Silverado truck?

alkaspeltzar wrote: Hey guys, my 2010 5.3 AFM Silverado w/66,000miles has been RPM surging while driving over the past couple weeks. It seems to happen primarily when traveling between 45-55mph. When driving, slightly accerating, the truck is doing about 1100 rpm in its 6th gear. The engines RPMs seem to bounce back and forth 50-100 rpm.

Why does my Chevy Silverado shudder at highway speeds?

You mentioned shudder in your title. If it is shudder on highway speeds, it it likely the lock out converter which was real common in the 700-R4 tranny. Changing fluid may help for a little while. Best thing for it is some friction modifier additive like Shudder Stop from Dr. Tranny, BG makes a good one too.

Engine surges when throttle is held at a constant speed around 50 -55 M.P.H. 1 year later… Engine surges when throttle is held at a constant speed around 50 -55 M.P.H.

Why is my Chevy 5.3 liter engine surging but no code?

I figured out how to induce it by letting off the gas and quickly giving it 1/4 throttle and about half the time this will cause the engine to surge. But it will not a throw a code and is beginning to drive me crazy. any help is greatly appreciated.

Why does my Silverado go faster in V8 mode?

It is not the usual ‘bounce’ you get from v4 to v8 mode, it is happening while accelerating which i can see is keeping it in v8 mode. To add to it, it is no happeing in really any other gear or driving condition. Go faster with more rpm, problem gone. Its seems to only show when “lugging’ in the low rpm when locked into the high 6th gear.

Why does my Silverado 4L60E have lame shifts?

Apparently on the newer trucks the engineers re-designed (un-desinged?) the 4L60E so that it has incredibly lame shifts. The converter never really locks up like you would think. There’s something called Pulse Wave Modulation (PWM) used to make the converter lock-up almost undetectable.

Who is the owner of the 2006 Chevy Silverado?

2006 Chevrolet Silverado Owner ManualM GENERAL MOTORS, GM, the GM Emblem, CHEVROLET, the CHEVROLET Emblem, and the names SILVERADO and Z71 are registered trademarks of General Motors Corporation. This manual includes the latest information at the time it was printed. We reserve the right to make changes after that time without further notice.

What causes the p0455 trouble code on a Chevy Silverado?

There are many things that can cause the P0455 trouble code to trigger in your Chevy Silverado. Here are the most common problems that will throw the code: Evap System Hose – The hose that carries the fuel vapor from the fuel tank to the intake manifold can begin to leak.

Where does the lifter sound come from on a Chevy Silverado?

You can hear lifter click best around the top of the engine, and isolate the noise with a stethoscope against the valve cover. It will occur at idle and increases as you rev the engine, continuing even when the engine is warm. Valve lifter noise is detrimental and should be addressed quickly.

How many miles does a Chevy Silverado 1500 have?

Check out this super nice 1999 Chevy Silverado 1500 long bed truck. This truck was bought new in Alabama and remained there its whole life. It has the 5.7 Liter engine with only 72,000 actual miles… More Info › Super clean, rust free, 1995 Chevrolet Silverado single cab short bed with only 44,900 original miles.

How many miles does a 1995 Chevy Silverado have?

Super clean, rust free, 1995 Chevrolet Silverado single cab short bed with only 44,900 original miles. Beautiful red paint, grey cloth interior with 4 4 and the z71 off-road package.

What causes an engine to surge during a tune up?

Step 2 – An engine’s tune up is a regularly scheduled service, when this service is neglected it can cause the engine to surge. Learn more Step 3 – If a fuel pump or regulator is failing is can cause an unsteady volume or pressure for the fuel system causing the engine to surge. Learn more

Why do my truck RPMs go up and down?

If your truck has afm the Rpms will increase 100-200 rpm when it goes I to 4 cyl mode. They will come back down when it goes back into 8 cyl mode So maybe it is switching back and forth from 4 to 8 cyl mode. That makes sense. I notice that it does it more often when the temperature outside is below freezing.

Can a vacuum line cause an engine to surge?

Learn more Step 5 – If a vacuum line has caused a leak the engine will surge, as vacuum lines age they can become brittle and fall off the engine or accessory. Learn more Step 6 – If an air intake boot becomes torn and develops a leak it will cause the engine to surge.

How to fix a surging engine in a car?

Easy step by step guide on how to repair an automotive engine that is surging, this information pertains to most vehicles and is listed in the order of popularity. Start with the vehcile on level ground, engine “OFF” in park with the emergency brake set, wear protective gloves and eye wear for safety.

What causes an engine surge in a car?

Step 4 – Some vehicles are equipped with an inline fuel filter, when this filter become plugged it lowers fuel delivery creating an engine surge. Learn more Step 5 – If a vacuum line has caused a leak the engine will surge, as vacuum lines age they can become brittle and fall off the engine or accessory. Learn more

What causes hesitation and surging on Blazer 4.3L?

Fix Hesitation and surging on Blazer 4.3L If you have Hesitation and surging on Blazer 4.3L and it’s driving like a dog—poor acceleration, hesitation, or a surge and you suspect a fuel problem, you may be partially right.