Question about Chevrolet Suburban
Well first you will need to figure out if it is fuel, ignition, or something mechanical.
Usually a miss under load is a weak spark or lack of fuel. Its possible the plug for cylinder 4 has become weak. Swapping it with another cylinder or replacing it would rule it out.
With that many miles, the injector for cyl 4 could be getting weak or dirty.
Posted on Jul 31, 2013
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.
Posted on Jan 02, 2017
One question, have you replaced the ECTS (Electronic Cooling Temperature Sensor)? These cause no end of different seemingly unrelated problems on Saturns. Peice is about ten bucks and is an easy install. Just search on youtube for a how-to video. Even if that's not the problem it is reccommended to replace this peice just the same as they ALL end up going bad at some point.
If that's not a fix, start pulling plugs. Check to see if they're correctly gapped and if they have any damage/corrosion. If you're running Platinum plugs, immediatly change to a copper plug as Platinums have no place in these motors. Most people have the best luck with NGK copper.
Check to make sure that your plug wires haven't been crossed. This sounds like a plug or wire issue most likely so it has to be in that family, if the plugs are good, wires good and not crossed, sensors are fine, then time to replace your coil packs. If you've replaced everything up to the coil packs then that is most likely the cause of your dillema.
Posted on Oct 25, 2008
It can be the suspensions or the shock absorbers, check also the engine mountings.
i will be good to take a full checkup of all the links and suspension bushes in the car. so a full test on the shocck absorbers, test the wheel bearings the hubs and if the discs are bend even is if the balancing was done.
Posted on Sep 21, 2010
SOURCE: My 2002 Camry (4 cylinder)
Did the dealer check the crakshaft sensor? it sounds like the timing is shifting causing the misfire.
the heat can cause intermitent faults maybe not long enough for the computer to register the fault with a code.
And as a possiblity the coil pack may be arking out somewhere, has this ever got wet? or cold recently?
Posted on Dec 29, 2010
SOURCE: I have a 2001 Jeep
I don't know which brand of plugs you have installed, but I wouldn't hesitate to change the spark plug since during my automotive lifetime, I have had two plugs with cracked insulators. This causes electrical 'leakage' from the center electrode to ground that can cause random or permanent loss of spark to the engine. Both of them were 'Champion' brand which I now never buy.
Posted on Apr 12, 2011
Tips for a great answer:
Aug 20, 2012 | 2006 Nissan Quest
Aug 18, 2017 | 2003 Hyundai Santa Fe
Feb 24, 2011 | 2000 Mitsubishi Galant
Nov 08, 2010 | 1999 Buick LeSabre
Apr 16, 2010 | 2003 Toyota Corolla
Nov 03, 2009 | BMW 5 Series Cars & Trucks
Feb 28, 2009 | 1986 Chevrolet S-10 Blazer
Aug 03, 2008 | 2002 Toyota Corolla
Jul 07, 2008 | 2003 Land Rover Freelander
31 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: