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.

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.

You've got a lot going on with all those codes.

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.

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. If they are loose or corroded, it acts as a barrier that can keep the starter from getting the voltage it needs to crank the engine. If there appears to be green or white on them or the terminals, cleaning them may be what your Acadia needs to get back on the road. You can take your battery to the local parts store or even Walmart and have it tested to see if it still holds a charge.

Gmc acadia cranks but wont start

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. It cranks and cranks but won't start. Relays and fuses under hood are good. At this point I'm thinking either no spark or no fuel. I sprayed a little starter fluid into air intake but still no start.

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I just posted on one that had water in the gas. Related Models For Sale. Richard Technician. I tested the fuel and was water…. Since it's resolved let me tell you a story No codes are setting in PCM. Michael Mobile Technician. Just my personal experience with working on older vehicles If it was then you would be able to look at low and high fuel pressures on the scan tool. Top Contributors this Month View All. It amazes me that they would not remember. I continue to try to improve the speed of Diagnosing so am open to here from everyone that is willing. That would be a bad day. Replaced battery and it still does the same thing, turns over but will not fire.

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.

I have to hunt down a vid on how to test the acadia crank sensor wires. Today I took over fresh gasoline and put a few gallons in the tank. I am trying to keep my out of pocket expense as low as I can. I think I need to get the exhaust off and remove the crank sensor and then test the wires. Then they called me and said the engine runs ruff and has low compression and stalls out after it warms up. David and Justin Write a car review. Mechanics don't fix by codes. Brian, thanks for the write up, I think it would be safe to say almost everyone has played with the contaminated fuel gremlins. Usually the bolts are stripped that hold the connectors to the fuse box engine compartment.