What causes cylinder 5 on a Chevy Silverado to misfire?

The engine is also not firing all of the fuel, so raw fuel is also passing through Cylinder 5 into the exhaust. Mileage may suffer as well when your Silverado has P0305 as well. P0305 is a cylinder specific misfire code, which means that Cylinder 5 is misfiring and causing it.

Is the GMC Silverado 5.3 L doing the same thing?

Same thing happening to my 2008 gmc series 5.3l, I’ve changed the plugs wires throttle body sensor map sensor, done throwing parts at it 5 people found this helpful. My 2007 was doing the same thing. Seemed to run ok at idle with feeling a slight misfire. When I put it under a load, all kinds of things went wrong.

Where is the fifth cylinder on a Chevy Silverado?

An important thing to understand when finding the location of Cylinder 5 is that it’s going to be the fifth cylinder in the firing order. It won’t be the fifth cylinder that you might see when looking at the engine. The P0305 trouble code will trigger the Silverado’s service engine soon light.

Are there any problems with the Chevy 4.3 engine?

Once you have ruled out all the basics, you can go back to what the Chevy 4.3 engine is known for: bad idle air control valves and throttle control switches. This article was written by a professional writer, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

What’s the original price of a 2005 Chevy Silverado?

Many cars for sale on CARFAX Used Car Listings are great value cars, with a value that’s higher than the listing price. What is the original MSRP of the 2005 Chevrolet Silverado 1500? The original MSRP of the 2005 Chevrolet Silverado 1500 is from $19,040 to $39,075.

What’s the problem with my Chevy Silverado 1500?

Seemed to run ok at idle with feeling a slight misfire. When I put it under a load, all kinds of things went wrong. No power, sounded like it was dieseling just crap. I did a smoke test for the intake, and various other tests.

How much does a Chevy Silverado engine hesitate?

Chevrolet Silverado 1500 Engine hesitates during acceleration Inspection costs $85 on average. Real customer reviews from Chevrolet owners like you. Great experience. Oscar was very detail oriented with the service. Very Friendly and Knowledgable. David did a great job.

What’s the misfire code on a 2000 GMC Sierra?

Hey, I have a 2000 GMC Sierra 5.3l V8 with 161,000 miles (260,000kms) and It has a P0300 Random Misfire code. The truck runs perfect around town and on the highway but the misfire is relative to RPM. If i hold the revs at 1900rpm or more it misfires and the SES light flashes.

How to troubleshoot a GM Truck misfire?

This isn’t the only symptom that your GM van, pickup or SUV might experience… here are some more that you might see: P0300: Random Cylinder Misfire. P0301: Cylinder #1 Misfire. P0302: Cylinder #2 Misfire. P0303: Cylinder #3 Misfire. P0304: Cylinder #4 Misfire. P0305: Cylinder #5 Misfire. P0306: Cylinder #6 Misfire. P0307: Cylinder #7 Misfire.

Can a vacuum leak cause a Silverado to misfire?

Vacuum leak – If your Silverado has a vacuum leak, it can be very difficult for it to get the right air/fuel mixture. This will cause the cylinders to misfire and it’ll throw the P0305 if the leak is around that specific cylinder on the intake manifold.

Can a Silverado Sierra have a misfire cylinder?

(The light never flashes, just stays solid). When i scan the code it reports P0301 cylinder 1 misfire detected and then P0301 misfire cylinder 1 *pending* I dont really notice any difference driving, only at idle and below 1000 rpm. It idles rough and goes up and down by a few hundred rpm. – Erased code, reappeared within 15mi.

What is the trouble code on a Chevy Silverado?

P0305 is a fairly common trouble code with the Chevy Silverado. It’s and OBD2 code and stands for: P0305: Misfire Detected → Cylinder 5.

Why does my Vortec 5300 have a misfire?

MISFIRE MYSTERY!!! I have a misfire that cannot be diagnosed!!!! 1999 5.3 Sierra. My engine has been rebuilt because of a dead #7 cylinder at 167800 miles. We figure a weak coil caused this.

Is the 98 Chevy 5.7 misfire running right?

I have a 98 chevy 1500 5.7. The truck doesnt run right at all. Msifres bad under acceleration. Idle ok when misses when reving and accelerating. I did a full tune up including plugs, wires, cap rotor and a new distributor. With key on i have about 60psi fuel pressure but idleing i only had 50psi.

How to help me with a Chevy k1500 misfire?

× Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

How to fix code p0305 Chevrolet cylinder 5 misfire?

How do I fix code P0305 CHEVROLET? Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. How much do you know about cars? What does this mean?

Why does my Chevy truck exhaust smell like gas?

This may be caused by fouled spark plugs, faulty ignition wires or malfunctioning ignition system components. Excessively rich fuel mixture. Proper burning of fuel requires the right proportions of fuel and oxygen. If the vehicle fuel system delivers too much gasoline, there will not be sufficient oxygen in the mix to burn it all.

What is the code for a cylinder misfire?

For instance, if the misfire occurs on cylinder #4, the code indicating this will be P0304, where the “4” relates directly to the affected cylinder. Similarly, misfires that occur repeatedly on specific cylinders will set codes that end with the numbers of the misfiring cylinders as the last digit in the codes.

What to do if cylinder 6 misfire on Dodge Dakota?

You need to reset the trouble codes and swap the coil pack, wire, and plug from Cylinder 6 to another cylinder. If you get a different P030X code, you’ll know that one of those three components is bad, since by moving those components you have changed which cylinder the trouble code has registered in.

What’s the misfire code on a 1998 Vortec?

Can someone please help with what I should check next, I have a 1998 Chevy K1500 5.7 Vortec with a misfire, P0300 code for 3 months. runs a little rough, while driving under normal conditions it sputters, hesitates, and also will backfire, under heavy acceleration no noticeable skip, no sputters, and does not hesitate or backfire.

What should I replace on my 1998 Chevy k1500?

Here is what has been replaced to try and stop this misfire: spark plugs, spark plug wires twice, distributor cap twice, rotor, ignition coil, EGR, CTS on intake manifold, coolant temp gauge sender, fuel filter, fuel pump, MAF sensor, oil change.

What’s the fuel pressure on a 1998 Chevy k1500?

Here are the tests I’ve done so far fuel pressure test, fuel pressure 160psi while running, then shut off for 20 min and fuel pressure was at 155 PSI. Dry Compression test on all 8 cylinders between 150-160 psi.

Why does my Chevy Silverado not turn over?

Have a 99 Chevrolet 4×4 Silverado with 5.0 it was hot wired by previous owner. It did crank but replaced the steering wheel column with new wires and now it will turn over but won’t start. The fuel pump is connected directly to the battery.

Why does my Chevy Silverado use so much oil?

The culprit for the excessive oil consumption issue lies with a defect in the 5.3-liter V8 engine. Back in 2007, GMC introduced a feature for its motors, called the active fuel management system, or AFM. The company implemented it to increase fuel economy, get better horsepower, and more torque.

P0307 is a fairly common trouble code with the Chevy Silverado. It’s and OBD2 code and means that a misfire has been detected in the 7th cylinder in the firing order. You should only be seeing this code if you have an engine with at least 7 cylinders.

What makes a GM 4.8L misfire engine stall?

P0306: Cylinder #6 Misfire. P0307: Cylinder #7 Misfire. P0308: Cylinder #8 Misfire. Really bad gas mileage. Lack of Power when you accelerate your van, pickup or SUV. Engine may start, run for a few minutes and stall.

What are the misfire codes for GM 4.3L?

P0303 Cylinder #3 Misfire. P0304 Cylinder #4 Misfire. P0305 Cylinder #5 Misfire. P0306 Cylinder #6 Misfire. P0307 Cylinder #7 Misfire. P0308 Cylinder #8 Misfire. Sometimes, even tho’ the engine is suffering a bona-fide misfire, no misfire codes are registered in the computer’s memory and/or no check engine light (CEL) on.

What causes cylinder 5 on a Chevy Silverado to misfire?