Jump to content

mis-firing V6 - due to A/C condensation


Recommended Posts

Posted

Hi all, newbie to the Chevrolet/GM vehicles here so please pardon the question if it is one of the more common ones... I could not find a quick reference to it doing a search.

 

I just "inherited" a 2002 Silverado 1500 (v6) - due to marriage :banghead: - and in the past few days it has exhibited some very odd behavior. The engine makes a horrible "tack tack tack" sound when running.

 

My wife says that this happened to her a while back and then eventually it would no longer run at all. The cause, according to the dealer, is that something in the A/C system causes condensation to drip on some part of the electronic ignition and thus causes corrosion there and misfiring. Apparently at some point it gets bad enough that the truck will not start anymore.

 

Anyhow, this is the point we are at again. She has been driving my car for the past few days as I did not like that engine sound... but she still insisted on driving the truck because she likes it more... now we are at the point of it not starting this morning.

 

The weather here has been very hot and humid as of recent so I am sure that the condensation on the A/C was more than present. Does any of this sound like something others have seen with these trucks before?

 

Her father tells me he has a recall notice for this and I will be having it towed to the dealer for that work... but I would really like to be able to go in there with a little more information than that so that I do not end up spending a truck load of money on something that does not need it.

 

Thanks in advance,

-John B

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.3k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,717
    Total Members
    8,960
    Most Online
    Tiffanyrose
    Newest Member
    Tiffanyrose
    Joined
  • Who's Online   2 Members, 1 Anonymous, 954 Guests (See full list)

  • Latest Articles

  • Posts

    • I tried tapping it.  This might sound like a dumb question, you should feel vibration or some type of noise when it turns on? Can someone please verify? Thank you all!
    • I feel better now for my own view point and actions or lack there of towards the dealership service theme reading your post and others. GM corporate is who offers the two free oil changes on the HD trucks and I bought my truck in Feb of 2025 and those oil change offers run out within 2 years I believe and I highly doubt I will be using either one of them. I had asked if I could officially give those free services to another customer ( a friend ) and they said no, its all a GM corporate thing based on the vehicle in question. What that service advisor did however was go into a little story about how such and such customer was denied engine warranty because he had done his own oil changes because then they are not documented ... you see where that goes and so an employee playing the game of scaring the customer into having the service work done there most certainly triggered my thought process. At a later date I did talk to the person who handles warranty claims at the dealership and she said to be sure to document the oil changes and keep receipts for the oil and filter ( coped the receipts from cases of Mobil oil and case of filters I bought from them ) and the vehicles VIN, the date of service, mileage etc and staple that together as a record I would give them if that was ever needed and I keep my own log book for services for each vehicle as well. Oh and about 8 months after I bought the truck the dealer starts calling me to offer a maintenance service since they haven't seen my vehicle show up on their system ... for the mere fee of 300.00 Canadian to change the oil and rotate the tires and a few other minor checks and I declined the offer, I get the call again a couple of months later for the same thing and she could tell I was not interested and she asked if they should take my name off the call list and I said yes, do that !.    By the way did you happen to keep your factory oil filter to open it up and see the surprises inside as I expect some will show up as per the odd little sliver of metal shaving and particles that the filter does trap along with bits of grey silicone sealer that come off of the inside edge of mating surfaces. I have cut open every filter so far on my truck although few miles but have changed the oil often and the second filter was vastly better with very little of anything, that first filter was the unsettling one as I expected it would be. 
    • I get why they do this…but man…not ideal. I only extract on inboard boat engines because the drains are buried and even then I hate it because it’s easy to leave a quart behind with that method.   They should market it as an “oil refresh” not oil change!
    • I only get oil changed where I can watch. Valvoline pulls through the dipstick into a see thru glass. When done they show me the dipstick. About the only way they can mess up is using the wrong oil. But that secret wouldn’t stay secret long. Honda uses TQ wrenches on everything. You can watch through a plate glass window. Discount tires does that with tires. Trust but verify. 
    • I would not argue that with you. It would be pointless to argue against the truth and you speak the truth.    My question and in fact the entire point of this thread is an exploration into the levers of wear which happens no matter how well we maintain our powertrains.    Some of these levers we exert a good deal of influence over which can and do result is lower wear, longer powertrain life. Some others we are sort of stuck with.    An engine is typically done when the ring to bore seal no longer is able to do the job effectively. Normally the first thing to go in a engine otherwise well maintained and adult driven is this seal.    Looking into the means, methods, products and attitudes that influence the rate of wear seems a worthwhile inquiry to me.     
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...