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.

Thanks man, your videos are quite educational

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 have a friend with a 2012 Malibu with the same problem, and same response from GM.

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'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 The dealer just had to look up the car for TSB's and could have found issues where calibration files were out of date.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!

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.

when you were scrolling on the output tests on the autel there was an RVS related test!

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.

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

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

Good video. SI = Service Information. Just in-case it hasn't been mentioned already.

So you saying this car was not still under warranty in 2015?

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.

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.

+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 :(

Howdy, any updates on this issue?? Got a friend w/ a 2010 model w/ same/similar complaint. Thanks in advance from Tn.

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.

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

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

"It's normal." Dealer Jive.

I’m having this problem any updates?

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.

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 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

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

They don't care if it's under warranty they've already collected their check

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.

Catalytic converter is blocked. Same thing happen to my enclave with no codes and the catalytic converter was almost block

Did you fix this problem ??

SI GM's service information database

any updates on this vehicle?

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

Instrument to body harness connector.

Its a fuse under the hood

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 !!

System Information

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.

sorry man, but I have to say great videos but I can't handel the lip smacking.