Question about Chevrolet 1500

1 Answer

I have a mystery truck! Bank one misfires under a load. Removed cats, new plugs and wires, fuel pressure at rail is great. Whats the f@%#$n problem? I got no trouble codes! its a mystery! 2005 chevy silverado

Posted by on

  • warsparrow Jun 13, 2010

    I hooked it up to a machine that gives live diagnostics while running. This is driving me crazy! I talked to someone last week at a reputable shop and they think its highly unlikely its a injector just because they have worked on very few with injector problems. Im at a loss!

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Chevrolet Master
  • 753 Answers

You could have a bad injector at that cylinder or a bad coil that runs that cylinder. If I remember there is 1 coil for each cylinder. How do you know which bank is miss firing without a code set?

Posted on May 31, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

03 jeep liberty 3.7 intermittent random multiple missfires with codes. Po3xx. All over the board with no particular pattern.


with scan tool values go as such... when running good left and right bank inj 3.8 ms when braking up l@38 r@0..

May 30, 2017 | Jeep Cars & Trucks

2 Answers

My 06 saturn ion check engine light is on with codes p0300 p1174 and idle roughly when stopped . Could it be the o2 sensor?


There is a technical service bulletin that states the correct procedure to repair this issue is to replace the injectors with updated units AND reprogram the pcm for the new injectors.

Jul 30, 2016 | Saturn Cars & Trucks

1 Answer

2004 nissan xterra run great for 12 miles then misfiring,cnt get over 45 miles an hour. codes p 0733,p0420,p0430,p0328 comes up. new wires,new cap,rotor spark plugs 6 months old timming belt 6 months...


code p0733 refers to gear 3 -incorrect ration===causes---wiring---TR sensor/switch--shift solenoids---transmission mechanical fault
code p0420 refers to catalytic converter system -bank 1---efficiency below threshold===causes--cat converter--wiring--HO2s 2
code po430 refers to cat converter system bank 2--efficiency below threshold===causes--cat converter--wiring ---HO2s 2
code p0328 refers to knock sensor (KS) 1 bank 1--high input===causes--wiring short to positive--KS incorrectly tightened--KS---ECM

basically replace the cat converters as they are blocking the exhaust system and preventing your over 45mph problem
replace the TR sensor/ switch as you have not mentioned a transmission problem
Rectify the problem with the KS as it controls the air/fuel mixture setting which contributes to the car getting hot.

Jan 12, 2014 | Nissan Cars & Trucks

1 Answer

1997 ford explorer Multiple cylinder misfire


I would want to know what the fuel pressure is on the rail. Sounds like the fuel pressure regulator has failed, or the return line to the tank is blocked.

Jul 26, 2012 | Ford Cars & Trucks

1 Answer

2002 Ford Mustang GT I used OBD-II to get the trouble codes, I got P0174,P0301,P302,P316 Freeze Frame Information: 1. DTC for which Freeze Frame was Stored - P0174 2. Fuel System 1 Status - Closed...


Because you got a misfire on cylinder #1 PO301
A misfire on cylinder #2 PO302
Misfires first 1000 rev PO316
O2 Codes PO 174
Etc,Etc


The LTT, is the result of not learning (yet-thus long term)
what isn't working correctly---Your Engine

Replace bad Coil--which ever is missing
Do not go by the codes,alone ,TEST

Dec 10, 2010 | 2002 Ford Mustang

1 Answer

2000 Z71, ERRATIC MISFIRE, NO LIGHTS, NO CODES, VERY LITTLE POWER, ENGINE SHAKES LIKE CRAZY, GUESS ITS BECAUSE OF MISFIRE, NEW PLUGS, NEW WIRES, NOT A PLUGGED CAT, ANY IDEAS?


if no codes, it just hasnt run long enough. its misfiring. what is fuel pressure? how did it run before you replaced plugs/ wires?

Dec 06, 2010 | 2002 Chevrolet Silverado

1 Answer

Has a 6.0 L with bad misfire under a load and is


Hi Brad,
I ran into the same problem your going thru,
swapped cylinder plug and wire ,and the scan kep telling me it was still seeing the problem on the same cylinder,
smoked it too,nothing made sense!
Until i took the whole fuel rail off carefully not to let the fuel run out all over the engine,Had a white rag folded up and handy,tilted the rail assembly and left the fuel run on the cloth,OMG! the rust that came out of there,
I pulled every injector out of the rail,cleaned the inside of the rail with air pressure and carb cleaner.
Its when I was checking the injectors that I found the culprit,the rust pieces had made it thru the injector but were trapped in the screen of the injector!
I hope this cures your.

Dec 10, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

Have a 1999 Toyota Tacoma with a 3.4. Vehiclw was brought in 4 pinging under acceleration. Check engine light was on with a TPS code. Upon diag we found the plugs very worn. 140K on vehicle so we did a...


Most likely I a would suspect the fuel rail had moisture in it. If you checked emissions it would most likely show no HC and alot of 02 and no CO. If it does show alot of HC then I would suspect sticking valves intermittantly . The pinging really points to no fuel issue tho. If you pull the injector connector off and no change then I would remove the fuel rail and inspect. Also make sure the wires are in the correct locations. It easy to get them wrong.

Sep 03, 2009 | Toyota Tacoma Cars & Trucks

2 Answers

1999 Dodge Ram 5.9L 4X4 not enough fuel


check the fuel filter and the EGR valve

May 07, 2009 | 1999 Dodge Ram

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

172 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6924 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...