What kind of shop runs your car out of fuel when you have a fuel problem and does not fill it back up? I have to ask...

 

A cheap ****ing one. It started this, morning little hesitantion. But it started, restarted perfect. Not sure what this is about. Maybe the gas need to settle? I'm going to restart it after work. Didn't drive it to work. Let's see if it starts with out trubble. I kinda am nervous. Going to start and restart over and over see if it works. Could it be that the truck gas needed to settle?

 

Could it also be that due to the truck running out of gas kinda ****ed it up?
I put $25 worth of gas in little gas tanks and refilled it. It was just cranking and then shutting its self down last night. Do you guys think the truck needed time for the gas to settle in the new fuel pumps? Just seams a bit weird. Maybe they were installed wrong? Idk. Any suggestions?

 

I have a similar issue that just popped up Johnny. I just bought my 2009 Cayenne from Porsche of Central Austin less than 3 weeks ago. It is kinda funny (Not really) how as soon as you have an issue they refuse to talk to you like you have the plague. I asked for the service records and they printed them out at least. It looks as if the high pressure pump was replaced in 2014 so I hope I can rule that expensive part out. No records of the low pressure ones ever being replaced. Anyway I was also told by a member that their crankshaft sensor was giving him the exact same symptoms and it was way cheaper than all of the fuel pump replacements.
These are my symptoms:
I drove the car all the way from Austin Texas to Little Rock Arkansas, about 8 hours no issues, only stopped once really quick to top up the gas tank. I drove the car to and from work for a week and only noticed once after parking for a short time that it cranked over for a long time then started, figured it was a fluke, but the car seemed really low on power after it started. Car sat over the weekend in my garage, Monday morning started and ran great on the way bringing my daughter to school, then sitting in heavy traffic it just dies and will not even turn over. I push it to the side out of traffic, sit a few minutes and it cranks (long cranking time), low on power as before, starter sounds weak, so I purchased a 1000 CCA AGM battery. I opened the garage door and started the car with the A/C on and stereo after 30 mins it dies in the garage, long cranking, did not start, then it would not crank over with 12.5 volts on battery. So it looks as though I have a couple of problems. Starter, fuel, ignition? I feel for you Johnny as mine is new to me only 3 weeks, haven't even made the first payment on it and already it is a garage queen. I am not trying to hi-jack the thread but I am anxious to see what fixes yours. My first step will be the crank sensor since I can get a new one for 69 bucks and some change at parts geeks. I will let you know what happens on my end before I jump on the fuel pumps. 2nd thing will be a new starter, and UNDER the intake manifold starter! LOL

 

I'm sorry for you also, It sucks to have a Porsche sitting at home and not being able to drive it. When looking online I also saw that it could be a crank sensor. But the Crank sensor would make a check engine light appear. I don't have any lights on my dash at all. Kinda weird right? I don't think its a starter on either of our cars. I think it has to do with fueling.... I'll let you know what happens to mine.

 

So small update, I got home from work and started the truck up. Started no hesitation. Let it sit and kept starting and restarting. All good. So I decided to take it on a small test drive around my neighborhood. Boy did it drive amazing. (I miss it lol) So I got home put it in my drive way and then let it sit. Tried to restart it, same exact **** as last time. Just cranked and then would not restart.

I let it sit for 2.5 hours came back out and tried to start it. Crank crank crank. Nothing. Did it again Crank, crank, rough running like it was going to die, put my foot all the way down on the gas, got it started. Held my foot for about 3-4 revs. Ran fine. No issue, moved it up and now its siting again. I don't know what to think.

Do you guys think its something they did wrong at the shop? Because it always started before the new fuel pumps. Because thats what I think happened. Idk taking it in again tommrow....

 

Just on an off chance, could it be battery low on charge?
Could something be draining the battery? Does your PCM reset itself (or when you touch it during operation - have real hot display)?
What if you had a trickle charger to make sure to top it off overnight? Then what?
If pumps are OK, maybe fault is elsewhere. Just thinking out loud.

Hope you get this sorted out...just don't swear at me...lol.

 

Mother****er. Lmfao jk.
I do apologize for swearing so much. It just pisses me off. Wouldn't the battery light come on if it was low? I checked the
Voltage meter and it wasn't low. Idk it's back at the shop snow. The guy said he knew what he though it was. Idk was running a bit rough when going Down. Let's hope it's fixed. If not we need to start looking into other place as you suggested. But this wasn't the problem before so I believe it had to be done when it was getting "fixed"

 

Reason I brought it up is because these cars run so many accessory things all the time, and if you look at the issues folks have fixed by having old battery replaced, it is within realm of possibility you have trouble starting due to the battery. Mine was acting up at some point due to age and I never had a battery light on. Even for some time did not have durametric codes thrown. Only after I let it go for a while and battery really started going, when I changed and all was good.
Other than that not sure what else it could be.
If you put a DMM on the battery, it wont give you what current is being drawn out of it, so may be not able to tell if battery is going bad. Load tester would help decide that (at auto shops/pep boys, etc).

 

Hmm interesting, but honest question. Would a bad battery cause it to shut off when driving?

 

So small update, I dropped the truck off. Went to go pick it up and he told me he may or may not have installed one of the fuel lines backwards. He than "fixed" it. He could barely get it started. Drove it home. Drove great. Tried to restart it half hour later same ****. Cranking, ( remember it's like the starter is stuck on sound, with out me holding the key) had to keep giving it gas and then it started. Left it for about 3 hours went back out same thing but it started right away and then died. Make the sound second time trying to start it. and then had to give it a whole lot of gas. Started and idled fine.

My thoughts, either the pumps are installed wrong 1
2- The Crankshaft postion sensor is bad
3- as Ciaka stated the battery is going bad (this will be my last replacement)

I'm going with number 1. But as the time goes on I'm leaning towards number 2 lol.
What do you guys think?

 

I would put batt on trickle charger. See how it starts hours later no need to buy new batt yet. If starts fine then load test it. Not sure if the others would cause this behavior (sure would be nice to have durametric to pull codes).

 

Not sure what years or models have them but some do have two batteries. Find out if you have both and if so check the easy one in the rear compartment first. The one under the seat is kind of a pain to get to but they may be able to test it from the jumper connections under the hood.


Like Ciaka said you need to get them load tested not just a volt meter. It's possible it could be there isn't enough power there to both turn the starter motor and fire the ignition.


No idea if or how you can test the crank sensor. There are also two cam position sensors also.

 

But once again with the battery's would my truck shut down when I was driving due to a low battery?

The cam and Crank would cause that, rough iddling and long/ trubbling starts right? Which should be replaced or is more likely to be the problem? The Cam or the Crank?

 

I don't think your car would shut down while driving if battery was weak. You're right on that. Is it possible maybe the battery was weak and car shut down due to fuel pumps which were fixed, and now due to weak battery it has hard starts? These may be separate issues. Does the car shut down while driving now, or has hard time starting up after prolonged time of not dtiving (hours). If not starting it is more plausible batt may be in play (especially if pumps replaced).
Is my thinking logical here?