Gmc acadia cranks but wont start

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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 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.

Usually the bolts are stripped that hold the connectors to the fuse box engine compartment. Any links to a good vid on this would be appreciated.

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.

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. 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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I just posted on one that had water in the gas. Jeff Technician. Michael Mobile Technician. I also wanted to make a correction to. When I got to the home I installed the battery and tried to start the vehicle. I live in Canada. Justin Mobile Technician. Put original motor back in as it had nothing wrong with it but was told different by several mechanics including the dealership it was plugged cats. In the end it'll be cheaper than you just throwing parts and money at it hoping to get it fixed. If the computer is trying to fire coils then seems to me that timing is good enough for the computer to figure out engine position. You need to find a common denominator and go from there. Review another car. I had a lo I wouldn't know if the balance test was result of the water or injectors.

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.

It could be bad wiring or connector. Report Follow. I have always felt like there are no wasted tests. Brian, thanks for the write up, I think it would be safe to say almost everyone has played with the contaminated fuel gremlins. Gmc acadia crank but not start. Im still not sure of why the coils was slow to fire during cranking that if someone could shed light on it would be great. AVS Forum. Please refer to CarGurus Terms of Use. Thanks for posting, we all miss things but you didn't give up or throw a bunch of parts at the vehicle. Then find a line and pump the old fuel out. Share your experience with others. Any ideas as to what I can try besides taking it in would be great. Grantv 52 Replies.