Gmc acadia cranks but wont start

Things need to be tested before you buy parts you don't need. Check for proper sparkfuel pressure and injector pulse. Do you hear the fuel pump prime the system when you hit the key?

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.

Gmc acadia cranks but wont start

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. It is cranking and the scan tool displays about RPM. No hint of starting. No codes are setting in PCM. There is a nice square wave to fire the coils. The fuel pump is coming on.

The main thing is that you stuck with it and found the problem instead of throwing part after part after part at it. Lorenzo Diagnostician. I smell gas so I took the coil off one cylinder and plugged in a spare plug to see if it would spark.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Right now it turns over but won't start. I smell gas so I took the coil off one cylinder and plugged in a spare plug to see if it would spark.

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. Guessing that there is no spark getting to the plugs.

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. 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.

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I had a similar example last year with bad gas and the only way I found it was the smell. They said the fuel pressure was David Diagnostician. As others have said it's better to test and disprove, than start hanging parts. I have always felt like there are no wasted tests. It amazes me that they would not remember. It's a wild shot, but many years ago I drove a car over some snow and the next time I tried to go somewhere I had the same problem you describe. Compared with known good, decided they was good. Brian, thanks for the write up, I think it would be safe to say almost everyone has played with the contaminated fuel gremlins. New York. Very confused i now again start looking at inputs again, SI, TSB's ect and found a tsb that talked about Dual Pulse Injector Strategy to help warm up the cats and decrease the time of fuel control, which only once per key cycle. Related Models For Sale.

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.

Log in. They have a GMC Acadia that would not restart after stopping at the store 2 years ago. Recommended Communities. Dave Mobile Technician. That would account for the slow cranking. And on that MY there should be a Pressure test port at the end of the fuel feed tube towards the rear of the engine. 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. North Carolina. I am doing this in their driveway. That definitely helps. I live in Canada. Sign up.