Using Freeze Frame Data: Trailblazer P0128
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Date: 2020-08-05
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Comments and reviews: 10
roadkill5333
I love freeze frame data! As a matter of fact, I had a bowl of them for breakfast just this morning! With sausage links and orange juice! Lol
I was visiting a friend once. A family friend of his was present, and mentioned that she wanted him to change her thermostat. I asked why she just needed a thermostat changes, was she overheating. She said no, just the opposite. She was getting the dreaded P0128. Well of course, I had to look it up. I'm not as smart as you guys are. And I came up with the same thought. This could be an issue. Then she tells me that was the problem last time! Huh? Beg your pardon? Did you say last time? She said that this happened a few weeks ago, too! And she changed the thermostat, and the code went away. UNTIL NOW! I was like AH HAAAA well there's your problem right there, lady! But, I was outnumbered, one woman to only two guys! We changed her thermostat! I whispered a few times that this wasn't the problem, to the friend, but her just shrugged, and said we have to do what she wants! I just assisted, and watched, while it all was done. She brought a T-stat, with her. NO COOLANT! No bucket! No drain pan, nothing but the need! After the NEW coolant was drained into the street, they went for other NEW coolant. Someone asked what was up, and I explained that she saw a code, and wants someone to shoot the parts cannon at it. So, we were the ones to do it. While they were gone, I got a little curios, and grabbed the old(NEW) T-stat, and looked it over! What should appear before my very eyes? Why, that was a large gap, where a large gap shouldn't be! Seem like the old(new) T-stat was faulty after all! And allowing a pretty good amount of coolant to flow, keeping the engine a bit too cool, for a bit too long. Who'd a thunk it? I set it back down, and went inside. They came back, and went went to refilling the system, while she tidied up a bit. As I walked out, I saw her throw a 20 footer across the driveway, and the old(new T-stat dropped home, NOTHING BUT NET! I jumped immediately into action, and told her to back the truck up. I retrieved the old(new T-stat, and pointed out the obvious fault! I explained that she out to return it, to the store for a refund, and show them this. I reached for the box for the new(new)T-stat, and put it inside, and said she could maybe get a refund, if she has the receipt! So, she was right all along, the old(new)T-stat was faulty, and causing the code to set, again! I had to eat some crow, but I think it taught me a lesson. It also turns out that she was employed at the very company where she purchased that faulty part. She works in the warehouse, not the parts counter. But still. She got her money back. One of those times that you ask yourself, O, O, O, O'REALLY? wink wink
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I love freeze frame data! As a matter of fact, I had a bowl of them for breakfast just this morning! With sausage links and orange juice! Lol
I was visiting a friend once. A family friend of his was present, and mentioned that she wanted him to change her thermostat. I asked why she just needed a thermostat changes, was she overheating. She said no, just the opposite. She was getting the dreaded P0128. Well of course, I had to look it up. I'm not as smart as you guys are. And I came up with the same thought. This could be an issue. Then she tells me that was the problem last time! Huh? Beg your pardon? Did you say last time? She said that this happened a few weeks ago, too! And she changed the thermostat, and the code went away. UNTIL NOW! I was like AH HAAAA well there's your problem right there, lady! But, I was outnumbered, one woman to only two guys! We changed her thermostat! I whispered a few times that this wasn't the problem, to the friend, but her just shrugged, and said we have to do what she wants! I just assisted, and watched, while it all was done. She brought a T-stat, with her. NO COOLANT! No bucket! No drain pan, nothing but the need! After the NEW coolant was drained into the street, they went for other NEW coolant. Someone asked what was up, and I explained that she saw a code, and wants someone to shoot the parts cannon at it. So, we were the ones to do it. While they were gone, I got a little curios, and grabbed the old(NEW) T-stat, and looked it over! What should appear before my very eyes? Why, that was a large gap, where a large gap shouldn't be! Seem like the old(new) T-stat was faulty after all! And allowing a pretty good amount of coolant to flow, keeping the engine a bit too cool, for a bit too long. Who'd a thunk it? I set it back down, and went inside. They came back, and went went to refilling the system, while she tidied up a bit. As I walked out, I saw her throw a 20 footer across the driveway, and the old(new T-stat dropped home, NOTHING BUT NET! I jumped immediately into action, and told her to back the truck up. I retrieved the old(new T-stat, and pointed out the obvious fault! I explained that she out to return it, to the store for a refund, and show them this. I reached for the box for the new(new)T-stat, and put it inside, and said she could maybe get a refund, if she has the receipt! So, she was right all along, the old(new)T-stat was faulty, and causing the code to set, again! I had to eat some crow, but I think it taught me a lesson. It also turns out that she was employed at the very company where she purchased that faulty part. She works in the warehouse, not the parts counter. But still. She got her money back. One of those times that you ask yourself, O, O, O, O'REALLY? wink wink
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Chuck
Did a thermostat on my '04 Bravada (same engine, etc) about three years ago as I had the same code (low mileage vehicle at approx. 62 k at the time. Recently got the same code (P0128, at 83 k, so this time I changed the coolant temperature sensor (and I know I should have changed the thermostat again) but I was curious to see if my temp sensor was the real culprit. So far, no code, but I guess time will tell. Oh, changing either is a big pain in the tookus(sic); behind the alternator, which isn't any fun either. Hope I don't have to go in there again. :D
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Did a thermostat on my '04 Bravada (same engine, etc) about three years ago as I had the same code (low mileage vehicle at approx. 62 k at the time. Recently got the same code (P0128, at 83 k, so this time I changed the coolant temperature sensor (and I know I should have changed the thermostat again) but I was curious to see if my temp sensor was the real culprit. So far, no code, but I guess time will tell. Oh, changing either is a big pain in the tookus(sic); behind the alternator, which isn't any fun either. Hope I don't have to go in there again. :D
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Nater
What scan tool is this? Im looking at buying an Autel scanner that has bi-directional controls, calibrating capabilities for after repairs like throttle bodies etc. , true live data, etc. We dont have a snap on truck or mac or matco that comes out to shop so looks like Autel is gonna be our route through the local NAPA. We use a laptop based cummins program for a scanner on school buses but now need to add a scanner for everything else thats getting added to our fleet from duramax's, explorers, powerstroke pickups etc.
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What scan tool is this? Im looking at buying an Autel scanner that has bi-directional controls, calibrating capabilities for after repairs like throttle bodies etc. , true live data, etc. We dont have a snap on truck or mac or matco that comes out to shop so looks like Autel is gonna be our route through the local NAPA. We use a laptop based cummins program for a scanner on school buses but now need to add a scanner for everything else thats getting added to our fleet from duramax's, explorers, powerstroke pickups etc.
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parochial2356
To be really anal, you could get the engine up to temp and check coolant temp after 8. 5 minutes with, say, an IR gun or a thermometer in the filler neck. Could be a temp sender that is slightly out of spec. But experience tells me.
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To be really anal, you could get the engine up to temp and check coolant temp after 8. 5 minutes with, say, an IR gun or a thermometer in the filler neck. Could be a temp sender that is slightly out of spec. But experience tells me.
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Stephen
Hi Eric, do you know if there is a place to find the same kind of code setting criteria for the DIYers? I noticed that you used Identifix to find that information. However, not sure that is a viable option for the diy guy. Thanks!
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Hi Eric, do you know if there is a place to find the same kind of code setting criteria for the DIYers? I noticed that you used Identifix to find that information. However, not sure that is a viable option for the diy guy. Thanks!
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kwathen
Just Wanted to say I own a repair shop and a full time mechanic and you that freeze frame data is the best thing since white bread most mechanic don't use it nearly enough thanks Ken
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Just Wanted to say I own a repair shop and a full time mechanic and you that freeze frame data is the best thing since white bread most mechanic don't use it nearly enough thanks Ken
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DrD
Could it have been the coolant temperature sensor itself? (I am sure the statistics don't lie, but if it were the ECT that was failing/out of spec, would the data have been different?
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Could it have been the coolant temperature sensor itself? (I am sure the statistics don't lie, but if it were the ECT that was failing/out of spec, would the data have been different?
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matthew1992ya
it seems that while using the otc scan tool you often have to change scan tools if that doesn't answer some of the what scan tool to buy questions I don't know what will
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it seems that while using the otc scan tool you often have to change scan tools if that doesn't answer some of the what scan tool to buy questions I don't know what will
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2009
This happened to me with my GM Oh and it was caused by me also. I was experimenting with different thermostats and when I stuck the 170 in it. Well lets say it wasn't happy.
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This happened to me with my GM Oh and it was caused by me also. I was experimenting with different thermostats and when I stuck the 170 in it. Well lets say it wasn't happy.
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FSU
Man I wish they would have kept that thermostat in that location! My 2008 has it at the very back passenger side of my inline 6! It. Is. Freakin. Pita to get to. Big time!
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Man I wish they would have kept that thermostat in that location! My 2008 has it at the very back passenger side of my inline 6! It. Is. Freakin. Pita to get to. Big time!
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