Question about 2007 Chevrolet Uplander
While driving the engines shuts off for a second and comes back on. We took it to a an authorized mechanic and they checked with the computer and found no problems. How dangerouse is it and what should we do?
The most common cause is a faulty relay or electrical component. The problem would have to be active when the mechanic checks the car. You could be stranded if the engine dies and does not restart.
Posted on Apr 22, 2013
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Posted on Jan 02, 2017
you should have three oxygen sensors on your car, one for each bank of three cylinders; should be towards the Y pipe on each exhaust manifold. Additionally you should have one on the exhaust pipe before the cadilitic converter.
Posted on Nov 20, 2008
i am on here because of an issue i am currently having with a 2004 tahoe, but after reading some the other problems people are having i will let you in on a previous experience i had with a 2002 chevy truck. my previous vehicle was a 02 chevy 2500hd with the 8.1 and the problem started on day when suddenly it shut off. it did restart with no problem. i never had that problem again until a month later and 1500 miles away when i went to texas to visit my sister. this time it took nearly 30 mins before it would restart. it would crank over fine but no fire. then suddenly out of no where it would fire up like nothing ever happened. so anyways to make a long story short i visited two different gm service centers, they did tune ups and diagnostics, and handed me the bills for over 500 dollars and told me that should do it. yea right the problem continued and then i searched online and one item that kept coming up was the crank position sensor. after reading what those people were dealing with i gave it a shot. went to the dealer bought a new sensor ($99) took an hour to install it and i never had the problem again. one last thing im gonna add. i had a friend that drove a late 90s or early 2000s grad prix, she was having the same problem and had her car in and out of the shop and never got it resolved, i told her to have them check the crank position sensor and bingo, she never had the problem again.
Posted on Feb 17, 2009
replace fuel pump relay. check all fuses to ignition and pcm .make sure they are not loose. check coil wires make sure they not loose.look at battery if you have the ac delco seal battery make sure green eye still there .if its black have battery check out.
Posted on May 06, 2009
SOURCE: engine shuts off while driving
I would suspect a faulty EGR valve, but is the check engine light on? If it is, take the vehicle to an autoparts store and have them use a scan tool to retrieve the fault code(s) stored in the computer. Most parts stores offer this service free of charge. That will narrow the search for the problem. Sure hope this helped.
Posted on Jul 20, 2009
it may be a bad tps ( throttle position sensor ). it causes transmission shift issues, bucking,jerking, idle surging, engine cut off, surge while crusing down highway. if this does not solve problem, it may be a sticking valve body in transmission. have a good day !! for an automatic tranny.
Posted on Jun 10, 2011
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