Colorado Injector Problems
- Thread starter vossman
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no fuel filter anywhere between the tank and engine. no part # from GM or any auto parts store. as for GM quality, my brother had an '05 5 cyl colorado that had multiple issues including a catastrophic failure of the timing chain (link broke) at less than 60k. i am not a GM basher by nature because all i've ever driven personally is a GM vehicle and dearly would love to stay brand loyal. but their small pickups appear to get the shaft on quality and workmanship. its a shame, could be the leader in its category if quality was better. i like its looks, initially enjoyed its power and mileage from the 2.8. mileage has dropped about 2 mpg (i assume in part due to injectors or whatever is wrong) and has been in the shop 13 times for various warranty repairs. mostly shoddy workmanship or just plain faulty parts gone bad. and now the alternator is squeaking too. again, i don't like to bash, but this thing is LOUSY in terms of quality. shame on GM.
I also always drove gm vehicles, we had 1970 and 1980 full size wagons, 1972 Buick Skylark. We now have a 1985 Olds 88 2 door purchased in 1992 with 46K miles, now has 168,000 miles, still goes ok, and a 2001 Impala. The 3.4L engine on the Impala had two intake manifold gaskets go bad. Each time they were replaced with an improved version. And this vehicle has under 40K miles on it. I think our next vehicle is going to be a Camry, or a Crown-Vick, I would like to get a low mileage 1996 Buick Roadmaster with the LS1 engine and rear wheel drive, but I do not want to own another front wheel drive GM vehicle of any kind, or for that mater any modern GM. My sister and her husband got a new GM SUV and the darn thing severely over-heated on the first long trip they took with it. Got them stranded over 100 miles from home. This was a brand new vehicle. Quite frankly if someone gave me a new GM vehicle of any kind I would sell it no mater what I got for it.
As for you vehicle I would try two cans of the SeaFoam in the gas. There are two types of SeaFoam one for transmissions and the other for all other uses. Auto stores like Pep-boys and Advance sell it for about 5 to 6 bucks a can. Napa charges about 7 per can. You will probably have to put two cans in a full tank of gas about every 5 months to keep your vehicle running well if it works for you. Try to put it in a full tank and then run that tank till it is as low as you can comfortably run it without danger of getting stranded.
I did hear something a couple of months ago, the oil companies persuaded the federal government to allow them to cut back on the cleaning additives they were putting in gas. Looks like the requirements for additives like SeaFoam will increase in the future.
Good Luck.
As for you vehicle I would try two cans of the SeaFoam in the gas. There are two types of SeaFoam one for transmissions and the other for all other uses. Auto stores like Pep-boys and Advance sell it for about 5 to 6 bucks a can. Napa charges about 7 per can. You will probably have to put two cans in a full tank of gas about every 5 months to keep your vehicle running well if it works for you. Try to put it in a full tank and then run that tank till it is as low as you can comfortably run it without danger of getting stranded.
I did hear something a couple of months ago, the oil companies persuaded the federal government to allow them to cut back on the cleaning additives they were putting in gas. Looks like the requirements for additives like SeaFoam will increase in the future.
Good Luck.
Originally Posted By: vossman
another question... if I remove the injectors, is it feasible or even possible to have them bench tested to find the culprit (assuming its just one) and then replace or should I just swap out all 4? Cost of 4 new injectors $400-ish.
There are places that can do that sort of thing, using an ASNU machine.
One of them is a site sponsor:
http://injectorrx.com/
another question... if I remove the injectors, is it feasible or even possible to have them bench tested to find the culprit (assuming its just one) and then replace or should I just swap out all 4? Cost of 4 new injectors $400-ish.
There are places that can do that sort of thing, using an ASNU machine.
One of them is a site sponsor:
http://injectorrx.com/
Originally Posted By: Jason2007
My gf's Uncle has a Colorado and on one side of the truck the sill plate says Colorado and the other sider says Canyon. He thinks it is funny that some line worker obviously wasnt paying attention.
That is a big issue! At my plant I have disciplined people up to and including time on the street. You need to have the dealer fix this so it gets reported to the plant. At out plant we put in computerized error proofing devices to prevent this, perhaps the Shreveport plant doesn't have it. People do make mistakes but that is still just not right. It happens with emblems too.
My gf's Uncle has a Colorado and on one side of the truck the sill plate says Colorado and the other sider says Canyon. He thinks it is funny that some line worker obviously wasnt paying attention.
That is a big issue! At my plant I have disciplined people up to and including time on the street. You need to have the dealer fix this so it gets reported to the plant. At out plant we put in computerized error proofing devices to prevent this, perhaps the Shreveport plant doesn't have it. People do make mistakes but that is still just not right. It happens with emblems too.
Originally Posted By: Jason2007
My gf's Uncle has a Colorado and on one side of the truck the sill plate says Colorado and the other sider says Canyon. He thinks it is funny that some line worker obviously wasnt paying attention.
An acquaintance got a new 1960's GMC pickup and it came with a Chevy tailgate
My gf's Uncle has a Colorado and on one side of the truck the sill plate says Colorado and the other sider says Canyon. He thinks it is funny that some line worker obviously wasnt paying attention.
An acquaintance got a new 1960's GMC pickup and it came with a Chevy tailgate
Originally Posted By: GMBoy
Originally Posted By: Jason2007
My gf's Uncle has a Colorado and on one side of the truck the sill plate says Colorado and the other sider says Canyon. He thinks it is funny that some line worker obviously wasnt paying attention.
That is a big issue! At my plant I have disciplined people up to and including time on the street. You need to have the dealer fix this so it gets reported to the plant. At out plant we put in computerized error proofing devices to prevent this, perhaps the Shreveport plant doesn't have it. People do make mistakes but that is still just not right. It happens with emblems too.
It's a non-issue, the owner thinks it's funny. There isn't much else about a Colorado that will make him happy.
Originally Posted By: Jason2007
My gf's Uncle has a Colorado and on one side of the truck the sill plate says Colorado and the other sider says Canyon. He thinks it is funny that some line worker obviously wasnt paying attention.
That is a big issue! At my plant I have disciplined people up to and including time on the street. You need to have the dealer fix this so it gets reported to the plant. At out plant we put in computerized error proofing devices to prevent this, perhaps the Shreveport plant doesn't have it. People do make mistakes but that is still just not right. It happens with emblems too.
It's a non-issue, the owner thinks it's funny. There isn't much else about a Colorado that will make him happy.
http://shop.oreillyauto.com/ProductDetai...e=4&PTSet=A
I don't know if this helps or not. This was for a 2006 2.8.
I know GM and Ford had injector issues on diesels (due to bad gas that had to meet epa stuff, so injectors kept blowing out), not too sure about normal fuel or not.
The OEM injectors may possibly be bosch, so it prolly isn't going to help if you got them from the dealer or not. If it is still under warrenty, I say find a good dealer.
Good luck
I don't know if this helps or not. This was for a 2006 2.8.
I know GM and Ford had injector issues on diesels (due to bad gas that had to meet epa stuff, so injectors kept blowing out), not too sure about normal fuel or not.
The OEM injectors may possibly be bosch, so it prolly isn't going to help if you got them from the dealer or not. If it is still under warrenty, I say find a good dealer.
Good luck
Why assume it's the injectors?
This could be all sorts of other problems.
You state it is rich from flooding? Really?
This could be all sorts of other problems.
You state it is rich from flooding? Really?
Hey, just reporting what the dealer told me. Not assuming but makes sense to me. Clogged injector with poor spray pattern or not enough fuel could make that cylinder difficult to get started and probably cause all sorts of computer corrections to mixture, etc. that may exacerbate the problem. Dealer said fuel pressure was fine when the tested. They said one of the injectors was severely clogged. That's why I took it to the dealer, let them figure it out and let them fix it under warranty.
**New update today** truck was sitting in Wal-Mart parking lot this afternoon and absolutely would not start though turns over fine. Cranked it about 5 sec then waited a minute and another 5+ sec crank and would not start. I got ticked off (to put it mildly) and had to have my wife come get me. I called the dealer and its going in in the morning. When we went back about an hour and a half later it started right up. Hope it starts in the morning. I checked, its only been about 2500 miles since it was at the dealer for this same problem. It sure as heck shouldn't need more injector cleaner of any kind already, should it? My time is pretty valuable to me and to be limping this thing to the dealer every month or so is getting REAL old.
...Oh and when I called today, the service rep said "there is a bulletin out on '06 injectors for this vehicle" So I assume they are sniffing up the right tree.
Anybody want to buy a cheap, low mile Colorado? You fly in with a cashiers check for trade in value and its yours. And I go straight to Toyota dealer. I'll even throw in the extra oil filters I have for it. And the repair manual. And I'll put a pine tree air freshener in it for your ride home.
**New update today** truck was sitting in Wal-Mart parking lot this afternoon and absolutely would not start though turns over fine. Cranked it about 5 sec then waited a minute and another 5+ sec crank and would not start. I got ticked off (to put it mildly) and had to have my wife come get me. I called the dealer and its going in in the morning. When we went back about an hour and a half later it started right up. Hope it starts in the morning. I checked, its only been about 2500 miles since it was at the dealer for this same problem. It sure as heck shouldn't need more injector cleaner of any kind already, should it? My time is pretty valuable to me and to be limping this thing to the dealer every month or so is getting REAL old.
...Oh and when I called today, the service rep said "there is a bulletin out on '06 injectors for this vehicle" So I assume they are sniffing up the right tree.
Anybody want to buy a cheap, low mile Colorado? You fly in with a cashiers check for trade in value and its yours. And I go straight to Toyota dealer. I'll even throw in the extra oil filters I have for it. And the repair manual. And I'll put a pine tree air freshener in it for your ride home.
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My Mom's work vechile when she worked for MM MAr's are a regional Sale/Merchndising Agent was a GM Mini Van it had different BRanding on each door,the rear lift gate and the interior. Luckily for me they included a set of GM Chevy,Pontiac,Oldsmobile bading in the glove box!LOL It was delivered to her with zero miles. She had to pick it up at the corperate Head Quater while giving a lecture. She did not notice until I pointed it out when she got home. I think her's had the Buick 3.8 in it and it was super reliable never an issue but still how drunk or high does one need to be to make that type of mistake? I have a lot of family and friends that are retired from GM and I worked for them under contract. I have personely seen people drunk orhigh on the job. I have seen them across the street from the plant on lunch doing crack or pot. I have had more then one person offer me some. Drinkingthugh is the bigest thing still!
I live close to GM FLint Truck and Bus and FLint Metal Fab and worked for GM North AMerican Operations for 7 years. Lets not forget all they chain tensioners that where install back wards onthe Colardo and Canyon engines. I was still working for them and they had 25,000 engines that where not installed that needed to be reworked. I recall a bunch of fullsize trucks that had their oil filters loctited on at the factory by some nuckle head and required new filter adapaters to be sent out to fleets and dealerships.....So nothing suprises me any more with GM even if I have notheard of it before!
I live close to GM FLint Truck and Bus and FLint Metal Fab and worked for GM North AMerican Operations for 7 years. Lets not forget all they chain tensioners that where install back wards onthe Colardo and Canyon engines. I was still working for them and they had 25,000 engines that where not installed that needed to be reworked. I recall a bunch of fullsize trucks that had their oil filters loctited on at the factory by some nuckle head and required new filter adapaters to be sent out to fleets and dealerships.....So nothing suprises me any more with GM even if I have notheard of it before!
It's odd that all the injectors would go bad at the same time - very very odd. The good ones would still let the engine start.
Something probably is affecting the fuel delivery or ignition.
Something probably is affecting the fuel delivery or ignition.
There is problem with the 2.8L engine starting in cold weather.Get a block heater,use it,and the problem will go away!It's got nothing to do with the throttle body or injectors it's design flaw.
My 99 Suburban 5.7 would get dirty injectors in about 20-25k. Two bottles of techron in 20 gallons of gas would bring them back like brand new. This started me as a techron believer.
Greaser, this problem occurred first in September in Oklahoma, which is like August temps elsewhere. So not cold temp starting. The coldest it ever gets down to here is about 10 degrees F anyway. It has also done it after driving 10-15 miles (in town so heated up) and restart within a couple minutes. They (the dealer) stated one injector was severely clogged, not all four. I would suspect that the computer was leaning the fuel mixture to compensate for excess unburnt fuel from a bad injector then that makes it difficult to start??? I dunno if I'm on the right track of thinking but it makes sense to me. If I knew a shadetree solution I haven't yet thought of, I would have tried it. I have run top tier fuel as GM recommends, run techron through it on a regular basis as well. The problem is beyond my solving. I am just going by what the dealer states. And they did say there was a bulletin out on these injectors for this year and I assume that made them suspect that first. I'm not sure why I am forced to defend myself or reinforce the lousy, lousy build quality of this vehicle. Its the worst I've dealt with ever... by far!
Wonder what happens if you try starting fluid in it. If it doesn't make the engine fire up, even for a few seconds, then the problem is spark.
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