When faced with hesitant restart/low power when hot and no DTCs it is a useful diagnostic to scope the crank and cam position traces just to check their peak voltage amplitudes. At the low revs, when using the starter motor to turn the engine over, the low amplitude signal output from a failing sensor (heat exacerbates the effect) may have difficulty in reaching ECM detection thresholds sufficient to trigger spark but when up and running the amplitude is enough to allow the engine to run well.
Ivan it's ironic you looked at wheel speed, had a 2011 enclave here last year with intermittent jerking and slow down , customer would pull over shut it off wait a short time start up and go. might not happen for a few days again. I kept the car for days no problem until I drove it on a very hot afternoon at highway speeds. Right rear wheel speed sensor showed. she would shut the car off and the code would reset, I didn't do that kept it running traction light came on and so did the abs, I went wheel sensor shopping. bingo. No more hesitation. the way she described it to me I thought it was engine related. IF you get this car back you might want to follow your instinct. Good luck and thanks for he post.
I hate Flat rate, some people love it, but warranty issues kill your pay check. So very few are going to spend the time looking for the intermittent complaint, simply cannot get paid. You can be the hero at times, but you also starve. The owners of the business do not care, heck they sell cars, so the Tech gets shafted for a problem created by the manufacturer.
I'm like Steve, Ivan. The dealer just had to look up the car for TSB's and could have found issues where calibration files were out of date. And could have updated the PCM without any charge. Good find Ivan on discovering the issue!
Good point. GMs official Strategy Based Diagnostics/SI has the tech/mechanic check for TSBs and Bulletins before proceeding with diagnostics. Since GM scan tool does not make this automatic, and they do not get paid, it is a step that gets skipped. A system where the scan tool polled the vehicles system automatically (and fast), listed needed updates, and any TSTs/Bulletins whould be a real help fixing the cars.
I'm a dealer tech and the way your customer was dealt with is embarrassing. Poor show on their part. Dealers get bad names as it is without that kind of poor service. I can only speak about myself, but TSBs and latest flash would have been my first port of call on a complaint like that. I do work at Toyota though and as I'm sure your aware they are perfect in every way!! .....I am not at all biased! Great video
+Toyota Tech i work in a gm dealer, and we stay up to date on electrical diagnoses and ALOT and i do mean A LOT of dealers have a bunch of hacks working in them, who don't care and just wanna fill your wallet with flat rate, i've ran into this issue before and a software calibration will fix it.
Nice 👍- no fix but I do have something that may help. All dealers work the same as you know but the customer should always call the 1-800 number in the back of their owners manual whenever a dealer fluffs them off. GM will tune-up the dealer to deal with the concern. On star keeps a record of a de-rating of engine speed , GM will investigate that as well. The dealer is completely negligent since you have demonstrated TSB's and an on star fault code. It would be nice if the customer called GM and referred your findings to the zone rep. to view your vid. This will be given high priority when brought to GM's attention. Let us know how this one turns out.
SI is GM's Service Information database. It's what GM techs use to check for TSBs, PI, and all related dealer service information. To bad GM tech don't have it as easy as Chrysler Wi-Tech system. That system has a master screen that shows all module equipped & active plus adds an icon when any module is due for update. It's like an incentive to Chrysler techs to check because you can get time for updating modules. GM techs have to search each module through SPS if they want to check for module update. No incentive and some times just to much a hassle.
I have a 2009 Buick Enclave I had the same problem putting the garage battery went dead put it in new battery in the car runs great no problems yet fingers crossed it's been about what two months still everything's okay try unhooking the battery and waiting a while and then put it back on that's just my experience good luck
Mine is going the same thing now and injustvchange the camshaft sensor my fans was acting up and the temp gage wasn't saying it was hot so I hooked a hot wire but now I have a no crank at all even jumping the starter
Had the same prob with my buick enclave and found out it was the transmission solenoid and I had another catalytic converter put on for extra safety under warranty I used it
Get in touch with BUICK'S CUSTOMER RELATIONS CENTER. 1-800-521-7300. Mon - Sat, 8 am to 9 pm. Sun CLOSED They will mediate the problem between you and the dealer (as you probably know, dealers are mostly independent from GM).
Buick Enclave one of the worst suv's with every kind of problem you can imagine !! Timing chains, leaky roofs, rubbing ac line, leaky rack, coroded fuse and wire harness, water filled blower motor, dash display reset, Buick should fire the team behind the Enclave !! And the 3.6 motor !!
Amen brother!!!!@ We got so screwed by Buick buting ine of these hepes of shit i check every box and then some on your list of malfunctions on this sad showing of American injunity no way should GM be getting away with selling these money holes its plain straight up criminal !!
Mine is doing the same thing chmageed the camshaft sensor also my fans was acting up gage wasn't telling me it was hot so I also changed the temp sensor
Enjoyed your collaboration with Eric on the Dakota as well as this video. What's with the change is scan tools? That Maxi-Das seems to b the Verus killer. Scanner Danner probably gets Verus's given to him as fast as they break.
+Bill Rimmer Thanks Bill! Autel is coming out with some pretty slick scanners and even scopes now. It's nice to have a back-up in case the other one has a bad day. So far my used Verus has been great...knock on wood.
Could it be the fuel pump driver module? A friend of mine just called and needed help. A hot, crank no start situation. There's no codes. Possible fuel pump and/or driver. His is a 2015 with 29k miles. What your describing sounds like a fuel delivery problem. As most fuel pumps don't throw codes. A module might if it's completely failed, but an intermittent one may not. Hate to throw parts at it, but sometimes a grenade approach might work. Edit: Looks like there's also a mechanical (OMGoodness) high high pressure fuel pump for the direct fuel injection. That could also be getting weak. Haven't found out yet where it's mounted, but orielly and AutoZone sells one.
Did you ever figure out the deal with that enclave. I jus got one and no one can seem to figure out the problem. When my vehicle shuts off on the odometer it will say “ Security Theft Deterrent System” i don’t know it that’ll be any useful for your diagnostics on the issue.
+Toyota Tech i have lexus es 330 with the same issue, i went to toyota asking them to do reprogramming for ecm but they dealt with the matter as it is normal and no need for flash whatsoever, what made me totally depressed :(
Mine is doing the same thing chmageed the camshaft sensor also my fans was acting up gage wasn't telling me it was hot so I also changed the temp sensor 6:22
Bro sup( OK am working on Chevy equinox 2011 no crank no start no DTC communication sometimes u will see selector light PRND won't come, if you leave am some minute den e start I need your help
Actually my neighbor just stopped by in it the other day. He says it has run perfect since the day I looked at it, no bullshit. So still unsure what the original problem was :/
I'm having little luck finding ignition wiring diagrams using BBB Industries for many vehicles. Is this normal? 05 G35, 13 Fusion, etc...no diagrams showing coils.
So the dealer said no codes can’t fix it really. Are mechanics that lazy now if there’s no codes they don’t know what to do. Why not start some tests customer said it loses power from a dead stop that’s your clue go from there. God and these people call them selfs mechanics
When you said what am I gonna do drive it around for a week my mind instantly said yes 😅
When faced with hesitant restart/low power when hot and no DTCs it is a useful diagnostic to scope the crank and cam position traces just to check their peak voltage amplitudes. At the low revs, when using the starter motor to turn the engine over, the low amplitude signal output from a failing sensor (heat exacerbates the effect) may have difficulty in reaching ECM detection thresholds sufficient to trigger spark but when up and running the amplitude is enough to allow the engine to run well.
Ivan it's ironic you looked at wheel speed, had a 2011 enclave here last year with intermittent jerking and slow down , customer would pull over shut it off wait a short time start up and go. might not happen for a few days again. I kept the car for days no problem until I drove it on a very hot afternoon at highway speeds. Right rear wheel speed sensor showed. she would shut the car off and the code would reset, I didn't do that kept it running traction light came on and so did the abs, I went wheel sensor shopping. bingo. No more hesitation. the way she described it to me I thought it was engine related. IF you get this car back you might want to follow your instinct. Good luck and thanks for he post.
I hate Flat rate, some people love it, but warranty issues kill your pay check. So very few are going to spend the time looking for the intermittent complaint, simply cannot get paid. You can be the hero at times, but you also starve. The owners of the business do not care, heck they sell cars, so the Tech gets shafted for a problem created by the manufacturer.
Larry Hurst the only ones that love it are stealerships, that way they get the money and you get the finger.
I'm like Steve, Ivan. The dealer just had to look up the car for TSB's and could have found issues where calibration files were out of date. And could have updated the PCM without any charge. Good find Ivan on discovering the issue!
Good point. GMs official Strategy Based Diagnostics/SI has the tech/mechanic check for TSBs and Bulletins before proceeding with diagnostics. Since GM scan tool does not make this automatic, and they do not get paid, it is a step that gets skipped.
A system where the scan tool polled the vehicles system automatically (and fast), listed needed updates, and any TSTs/Bulletins whould be a real help fixing the cars.
WMichael S or you can pay the damn techs.
Ali Abdallah
If you owned the shop, how would you pay them?
If you are GM and
I'm a dealer tech and the way your customer was dealt with is embarrassing. Poor show on their part. Dealers get bad names as it is without that kind of poor service. I can only speak about myself, but TSBs and latest flash would have been my first port of call on a complaint like that. I do work at Toyota though and as I'm sure your aware they are perfect in every way!!
.....I am not at all biased!
Great video
+Toyota Tech i work in a gm dealer, and we stay up to date on electrical diagnoses and ALOT and i do mean A LOT of dealers have a bunch of hacks working in them, who don't care and just wanna fill your wallet with flat rate, i've ran into this issue before and a software calibration will fix it.
+HTS AutoWorks I'm in UK, not US. No flat rate here either!
Nice 👍- no fix but I do have something that may help. All dealers work the same as you know but the customer should always call the 1-800 number in the back of their owners manual whenever a dealer fluffs them off. GM will tune-up the dealer to deal with the concern. On star keeps a record of a de-rating of engine speed , GM will investigate that as well. The dealer is completely negligent since you have demonstrated TSB's and an on star fault code. It would be nice if the customer called GM and referred your findings to the zone rep. to view your vid. This will be given high priority when brought to GM's attention. Let us know how this one turns out.
Send Mary Barra an email if you like as well- her staff is always willing to help serve the customer . This is a M.V.S.S. Item . mary.barra@gm.com
Steve Rob Wow Steve, thanks for the details! I'll see if the problem is still plaguing this Buick and re-scan it to see if that self-test passed...
SI is GM's Service Information database. It's what GM techs use to check for TSBs, PI, and all related dealer service information. To bad GM tech don't have it as easy as Chrysler Wi-Tech system. That system has a master screen that shows all module equipped & active plus adds an icon when any module is due for update. It's like an incentive to Chrysler techs to check because you can get time for updating modules. GM techs have to search each module through SPS if they want to check for module update. No incentive and some times just to much a hassle.
0:07 If you pause it here, it's like that Buick was made in the future, and we're sitting in the 90's.
+thecomputerman100 lol the only thing I can say is that all the vehicles surrounding this new-fangled SUV will probably out-last it! :)
I have a friend with a 2012 Malibu with the same problem, and same response from GM.
I have a 2009 Buick Enclave I had the same problem putting the garage battery went dead put it in new battery in the car runs great no problems yet fingers crossed it's been about what two months still everything's okay try unhooking the battery and waiting a while and then put it back on that's just my experience good luck
Good video. SI = Service Information. Just in-case it hasn't been mentioned already.
Still a good tip
Thanks man, your videos are quite educational
Mine is going the same thing now and injustvchange the camshaft sensor my fans was acting up and the temp gage wasn't saying it was hot so I hooked a hot wire but now I have a no crank at all even jumping the starter
Howdy, any updates on this issue?? Got a friend w/ a 2010 model w/ same/similar complaint. Thanks in advance from Tn.
Had the same prob with my buick enclave and found out it was the transmission solenoid and I had another catalytic converter put on for extra safety under warranty I used it
I have a 2012 buick enclave and my transmission hot idle came on
I’m having same problem but checked my tranny fluid and it smells burnt gonna have someone flush it and check out transmission I guess
my 02 grand marquis had the same problem. 3 mechanics later still not fixed cause they couldn't get it to do it. it does it when it wants to.
I own one of these and had this problems since we purchased it no fix yet keep getting the run around from the dealer now its getting worse
Get in touch with BUICK'S CUSTOMER RELATIONS CENTER. 1-800-521-7300. Mon - Sat, 8 am to 9 pm. Sun CLOSED
They will mediate the problem between you and the dealer (as you probably know, dealers are mostly independent from GM).
having the same condition, what was the problem
Buick Enclave one of the worst suv's with every kind of problem you can imagine !!
Timing chains, leaky roofs, rubbing ac line, leaky rack, coroded fuse and wire harness, water filled blower motor, dash display reset,
Buick should fire the team behind the Enclave !! And the 3.6 motor !!
That's the Enclave; in a nutshell... I'm with you.
Amen brother!!!!@ We got so screwed by Buick buting ine of these hepes of shit i check every box and then some on your list of malfunctions on this sad showing of American injunity no way should GM be getting away with selling these money holes its plain straight up criminal !!
Mine is doing the same thing chmageed the camshaft sensor also my fans was acting up gage wasn't telling me it was hot so I also changed the temp sensor
Enjoyed your collaboration with Eric on the Dakota as well as this video. What's with the change is scan tools? That Maxi-Das seems to b the Verus killer. Scanner Danner probably gets Verus's given to him as fast as they break.
+Bill Rimmer Thanks Bill! Autel is coming out with some pretty slick scanners and even scopes now. It's nice to have a back-up in case the other one has a bad day. So far my used Verus has been great...knock on wood.
@@PineHollowAutoDiagnostics "Knock on wood" sound like solely Russian Proverb... and may be in some cases translation is required?
Could it be the fuel pump driver module? A friend of mine just called and needed help. A hot, crank no start situation. There's no codes. Possible fuel pump and/or driver. His is a 2015 with 29k miles. What your describing sounds like a fuel delivery problem. As most fuel pumps don't throw codes. A module might if it's completely failed, but an intermittent one may not. Hate to throw parts at it, but sometimes a grenade approach might work. Edit: Looks like there's also a mechanical (OMGoodness) high high pressure fuel pump for the direct fuel injection. That could also be getting weak. Haven't found out yet where it's mounted, but orielly and AutoZone sells one.
Did you ever figure out the deal with that enclave. I jus got one and no one can seem to figure out the problem. When my vehicle shuts off on the odometer it will say “ Security Theft Deterrent System” i don’t know it that’ll be any useful for your diagnostics on the issue.
Catalytic converter is blocked. Same thing happen to my enclave with no codes and the catalytic converter was almost block
So you saying this car was not still under warranty in 2015?
when you were scrolling on the output tests on the autel there was an RVS related test!
"It's normal." Dealer Jive.
+Toyota Tech i have lexus es 330 with the same issue, i went to toyota asking them to do reprogramming for ecm but they dealt with the matter as it is normal and no need for flash whatsoever, what made me totally depressed :(
Mine is doing the same thing chmageed the camshaft sensor also my fans was acting up gage wasn't telling me it was hot so I also changed the temp sensor 6:22
They don't care if it's under warranty they've already collected their check
I’m having this problem any updates?
Bro sup( OK am working on Chevy equinox 2011 no crank no start no DTC communication sometimes u will see selector light PRND won't come, if you leave am some minute den e start I need your help
Did you fix this problem ??
SI GM's service information database
any updates on this vehicle?
Actually my neighbor just stopped by in it the other day. He says it has run perfect since the day I looked at it, no bullshit. So still unsure what the original problem was :/
motoYam82 🐂💩
Any ideas from the guru? ;)
motoYam82 I'll let you know when he calls 😂
I'm having little luck finding ignition wiring diagrams using BBB Industries for many vehicles. Is this normal? 05 G35, 13 Fusion, etc...no diagrams showing coils.
Try looking under "fuel controls". Both vehicles that you mentioned have diagrams of ignition coils on BBB, I just checked.
+motoYam82 Thanks!!! It appears that my browsers on the iPad aren't totally compatible. Only 1 page comes up. Thanks again!!!
Its a fuse under the hood
So the dealer said no codes can’t fix it really. Are mechanics that lazy now if there’s no codes they don’t know what to do. Why not start some tests customer said it loses power from a dead stop that’s your clue go from there. God and these people call them selfs mechanics
I have this car and such a piece of crap. Never had so many electrical issues other than Buicks.
MeatyFlush so you don’t recommend it? I’m actually looking for a car and I ha sky eye on ok of these or a Tahoe
We love our enclave.
@aiden roose we have over 250,000 miles on our with zero problems.
Instrument to body harness connector.
System Information
sorry man, but I have to say great videos but I can't handel the lip smacking.