Why did my 99 Tahoe have multiple misfires?
Why did my 99 Tahoe have multiple misfires?
Re: I got a 99 tahoe 5.7 vortec with multiple misfires… This is one of those situations that a professional diag would of saved you alot of money. Its possible you just got bad gas and your injectors are partially clogged. An 02 sensor would not give multible misfires.
What was the problem with my 1998 Tahoe 5.7 Vortec?
Just had the same problem on my 1998 5.7 vortec first it started with just the #6 misfire then multiple misfires. turns out it was a bad fuel injectors. Since i was towing my boat i ignored it for a couple hundred mile till i got to my destination.
What kind of engine does a 99 Tahoe have?
I got a 99 tahoe 5.7 vortec with multiple misfires under load/accelerating. So far Ive replaced; plugs, wires, cap n rotor, coil, egr valve, fuel filter, o2 sensors. Tested; vacuum, fuel pressure, OBD 2 scan. All in which came back ok/no codes.
What to do if your Tahoe is misfiling?
If its idling and misfiring and gets better as you rev it up most likely you have clogged injectors or a intake vacuum leak. You can test for a intake leak by spraying the intake area with water (idle will faulter if it draws water in), or use brake cleaner (idle will raise when fluid gets drawn in).
Re: I got a 99 tahoe 5.7 vortec with multiple misfires… This is one of those situations that a professional diag would of saved you alot of money. Its possible you just got bad gas and your injectors are partially clogged. An 02 sensor would not give multible misfires.
Just had the same problem on my 1998 5.7 vortec first it started with just the #6 misfire then multiple misfires. turns out it was a bad fuel injectors. Since i was towing my boat i ignored it for a couple hundred mile till i got to my destination.
I got a 99 tahoe 5.7 vortec with multiple misfires under load/accelerating. So far Ive replaced; plugs, wires, cap n rotor, coil, egr valve, fuel filter, o2 sensors. Tested; vacuum, fuel pressure, OBD 2 scan. All in which came back ok/no codes.
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.
How can I tell if my Chevy Tahoe fuel pump is bad?
Testing your Tahoe’s fuel pressure on each side of the pump would be the best way to diagnose this problem. A priming fuel pump sounds like a high-pitched whine for a few seconds and can be heard with a sharp engine right after the ignition key is turned, but before the starter is engaged.
If its idling and misfiring and gets better as you rev it up most likely you have clogged injectors or a intake vacuum leak. You can test for a intake leak by spraying the intake area with water (idle will faulter if it draws water in), or use brake cleaner (idle will raise when fluid gets drawn in).
Why does my Chevy Tahoe Miss under load?
Certainly a miss under load can be a symptom due to fuel supply problem, just hard to imagine that it’s always the same cylinder that gets starved. Hope the pump really does fix your problem, but it wouldn’t surprise me if it’s a head gasket, intake gasket, or some sort of problem like a defect in the head on that cylinder.
Can a bad distributor rotor cause an engine misfire?
Engine misfires can occur for a number of reasons. Checking your distributor rotor and cap to see if they need to be replaced is one way to ensure that everything is in solid working order.
What is next code on Chevy Tahoe misfire?
Looked at the plug (#5), it was black and sooty, so i swapped the cyl 5 plug with the cyl 1 plug just to see if it was the plug. Sure enough, next code was a p0301!
Engine misfires can occur for a number of reasons. Checking your distributor rotor and cap to see if they need to be replaced is one way to ensure that everything is in solid working order.
What are the symptoms of a bad distributor rotor and cap?
Symptoms of a Bad or Failing Distributor Rotor and Cap Common signs include engine misfires, car not starting, the Check Engine Light coming on, and excessive or unusual engine noises. by Valerie Johnston on January 07, 2016 Vehicle Engine Mechanical Inspection Cost
Certainly a miss under load can be a symptom due to fuel supply problem, just hard to imagine that it’s always the same cylinder that gets starved. Hope the pump really does fix your problem, but it wouldn’t surprise me if it’s a head gasket, intake gasket, or some sort of problem like a defect in the head on that cylinder.
