Go Back   Tahoe Forum - Chevy Tahoe Forum > 2000 - 2006 Chevrolet Tahoe / GMC Yukon / Cadillac Escalade Year Models > General Tahoe/Yukon/Escalade Discussion Forum

Register to remove these ads.
General Tahoe/Yukon/Escalade Discussion Forum General Tahoe/Yukon/Escalade Discussion Forum

Thread Tools Display Modes
Old 10-25-2017, 02:52 PM   #1
Tahoeforum Newcomer
Join Date: Nov 2012
Location: spain
Posts: 1
CAMAREIBOL is on a distinguished road
Default operation misfire impossible solution?

I have a 2004 5.3 V8 4x4 with 150.000 miles.
The powertrain lights appeared on my dash and was indicating p302 code showing a injector that was bad because an electrical issue. I changed this injector and made a cleaning with new seals for the rest and checking the electrical connections resulting in perfect work.
The light still showing on. and showing 02 sensors, misfire detection but now just a generic P300.
I have changed for a brand new catalyzer, new O2 sensors, new ignition coils, new spark plugs, new spark plug cables and cleaned the MAF sensor and K&N air filter. Also throtthele body has been cleaned.
Still showing the P300 misfire code and the engine runs bad at idle and when ist running.
The last tghing i have checked is that just touching the gas pedal or pushing down to accelerate the powertrain light flash and when doing nothing stay lighted.
I delete the code and sometimes appears the dash light in the next minutes or sometimes i can do 150 miles with no dashlight.
my lasdt thinking is a bad pressure fuel sensor butin my case is a 2004 tahoe and from this year is inside the fuel tank so i have to remove it.
what other things do i have to check?
any idea about this P300
CAMAREIBOL is offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Other Sponsors

All times are GMT -4. The time now is 01:22 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
All rights reserved and copyrighted
Fully Driven Auto Network
GM Truck Forum
Ford Raptor Forum
Dodge Ram Forum
Chevy Cobalt Forum
Chevy Camaro Forum
FJ Cruiser Forum
Ford Truck Forum
88-98 GM Truck Forum
73-87 Gm Truck Forum
Ford Expedition Forum
Chevy Equinox Forum
Chevy Cruze Forum
Jeep Liberty Forum
Jeep Forum
Dodge Ram SRT10 Forum
Chrysler 200 Forum
Scion xD Forum
Scion xB Forum
Dodge Challenger Forum
SRT Forum
Nissan Titan Forum
Buick Enclave Forum
Cadillac Forum
Cadillac XTS Forum
TRD Forum
Central US Mopars
Southeast Mopars
Cadillac CTS Forum
Oklahoma Dodge Ram Club
Softball Forum