Gmc acadia cranks but wont start

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Things need to be tested before you buy parts you don't need. Check for proper spark , fuel pressure and injector pulse. Do you hear the fuel pump prime the system when you hit the key? Ed answered 7 months ago. You've got a lot more going on than a crank sensor. Mechanics don't fix by codes. They find the area of a problem by codes then use diagnostic skills to find the actual problem.

Gmc acadia cranks but wont start

We had a Acadia come in with symptoms of timing chains. Customer shut it down one night, and went to start it next morning and it was a no start. Not sure how long it was cranked on. When it got to the shop in was a start stall while popping in through the intake, and at times Crank No Start. I believe O2 sensor for codes. Compared with known good, decided they was good. Before going in cylinder i quickly looked at Relative compression again and this time noticed my coil wasn't firing as soon as engine started cranking. Replaced the CKP sensor with no change. At this point i realized i made the wrong call most likely off of noise in my waveform Grounding off the block instead of a cleaner location. I move on to In cylinder of both banks, even with the unknowns of the coil firing, which did show a difference of overall compression and off some on valve timing from a known good, but even not having alot of training in in cyl testing, I didn't fill it wound be off enough to cause my problem. It should run. At this point the engine would sometimes stay running longer than before, but pop really bad. I wanted to see what the Injectors was doing, so i done a injector balance using GDS2 and after two separate test showed the injector flow was all over the place from one to another. I also wanted to see the WORK being done with a amperage waveform, and here is where i set myself back even more. Tested one injector on both banks.

I wish the OE diagram would have mentioned both.

I volunteered to help some folks out that have fallen on hard times. They have a GMC Acadia that would not restart after stopping at the store 2 years ago. They need the vehicle to run so one of the spouses can go back to work. I stopped and bought a battery. When I got to the home I installed the battery and tried to start the vehicle.

GMC Acadia making clicking noise when attempting to start the engine is a fairly common problem when it comes to no-crank starting issues, and can be easily fixed in the majority of cases. The most common causes for clicking noise and no crank in GMC Acadia are weak battery, corrosion on battery terminals, poor starter electrical connection, bad ground connection, and faulty starter motor. The leading cause of clicking noise and no start in GMC Acadia is weak battery. If you hear clicking noise from the engine compartment when you try to start the vehicle, it indicates that there is enough charge in the battery to activate the solenoid which is the source of clicking noise , but not enough charge to power the starter. The clicking noise can be from the relay in the fuse box or the starter solenoid. The easiest method to check the 12v battery in Acadia is by measuring the voltage with a multimeter.

Gmc acadia cranks but wont start

Many different issues can cause the problem. We cover all the likely ones in an order that makes sense when diagnosing the issue at home. This article is written with the assumption that you are looking for a way to get your GMC Acadia started now, and is meant to provide you with practical advice to help aid in the diagnosis. First, is your Acadia cranking over at all the engine spins when you turn the key? Or is the starter not engaging you may hear a clicking sound? Start by taking a look at the battery posts.

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Just wondering if anyone has any thoughts of tests I can do without removing components or jacking it up? Share your experience with others. I always use a can of Seafoam with the new gas just to help clean the moisture and gum deposits out of the fuel tank. In using my labscope, I can then look to see if there are peaks indicating the injectors are firing. All in All at least some of use learned something from this post. Water in the fuel is not a very common problem and not the first thing we think of. So Sorry if it doesn't make complete since step by step. I continue to try to improve the speed of Diagnosing so am open to here from everyone that is willing. Had never heard of that. South Texas I tested the fuel and was water…. General Questions.

GMC Acadia is a reliable road companion, but its a machine with hundreds of interconnected parts, and like any other machine it sometimes fail to deliver normal operation. In this article we go through most common causes of Acadia breakdown and how you can fix the problem. The most common causes that hinders normal starting operation of your Acadia are dead 12v battery, corrosion on battery terminals, and dead key fob battery.

Used motor developed a knock. Please consider creating a new thread. AND its my first time doing a write up, so go easy lol. Share your experience with others. Do you hear the fuel pump prime the system when you hit the key? Justin Mobile Technician. Dealer Signup Reviews. Loan Calculator. Had never heard of that. Just my personal experience with working on older vehicles Not sure how long it was cranked on.