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? Ed answered 7 months ago.

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.

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.

In using my labscope, I can then look to see if there are peaks indicating the injectors are firing.

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.

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. I'm getting ready to pull one, ground it, and see if there is spark just to verify.

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. 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.

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Content will be removed if CarGurus becomes aware that it violates our policies. In the end it'll be cheaper than you just throwing parts and money at it hoping to get it fixed. Used Cars For Sale. Good job. As i read back over my post i noticed i said i was using GDS2. Take a sample to test for alcohol content at the same time. Sign up. I also wanted to see the WORK being done with a amperage waveform, and here is where i set myself back even more. With something like this you want a skilled mechanic to sort it out and fix it. JayTee 65 Replies. Do you hear the fuel pump prime the system when you hit the key? Car would not start, even after trying to jump it. Reply Private Reply Share. Since there's a smell raw fuel, can we assume that you hear the fuel pump working when you first turn on the key? The post reminds all of us that persistence and determination can solve many problems.

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.

Based on the Mitchell schematic, if the coils have power supplied properly then the coils should also. That would account for the slow cranking. The fuel pump is coming on. I also wanted to see the WORK being done with a amperage waveform, and here is where i set myself back even more. Hi Dan, That is good advice. Thank you all for working on this with me. With something like this you want a skilled mechanic to sort it out and fix it. Things need to be tested before you buy parts you don't need. Brian, thanks for the write up, I think it would be safe to say almost everyone has played with the contaminated fuel gremlins. Grounded the plug out and turned it over and saw no spark. I have to hunt down a vid on how to test the acadia crank sensor wires. Don't beat yourself up because of the time spent testing. No codes are setting in PCM.