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Patriot will not start

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stalling wont start
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jburnett

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Discussion starter · #1 · (Edited)
I have a 2007 Jeep Patriot Sport Edition with 95K miles on it. The vehicle will not start at times but will turn over. I have replaced my alternator, battery, and spark plugs. Also on my way to work today I was at a stop light when my RPMs went up to 1500 and then bottomed out and stalled. This is the first time it has stalled while I was driving it. I have an Innova 3100 ABS code reader and have not had any codes thrown. I cannot figure out why this is happening and would really appreciate any help anyone can give for this problem. I have always wanted a Jeep but since getting this vehicle in 2011 I have had problems after problems.:eek::eek:
 
#2 ·
Discussion starter · #5 ·
No, it will be very random. For instance I have had it parked overnight and then it will not start and ten minutes later it will then other times I will go to the Shoppette to get something to drink and when I get back in my vehicle, it will not start. Everytime it will turn over however, it will not start and once in a while when it does start it will immediately stall out after running for approximately 2-5 seconds.
 
#8 ·
nysfro585 said:
had the same thing happen with my old 96 1500 suburban. turn out that it was the fuel pump. had a 99 2500 suburban and did the same thing but it was the fuel injectors. both times it ran me cazy trying to find what it was.

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Had the same problem with my 1999 K2500 Chevy pickup. Ended up being the fuel pump. Temporary solution was to pound upwards on the underside of the fuel tank. My laziness turned this into a long term solution until I ended up stranded further away from home then I wanted. Might be worth a try
 
#9 ·
I'm also inclined to think its a fuel pump. The car I traded in to get my Patriot was starting to have similar issues (to a degree) and the mechanics I talked to all thought it was likely the fuel pump going bad. From what I was told, when you let the fuel level drop below 1/4 of a tank, fuel pumps have to work a lot harder and tend to wear out faster. Once you are getting close to 100,000 miles, a fuel pump going bad is relatively common. In my case, the car would inconsistently stall - sometimes at start-up, sometimes idling at a stop, etc. Then it wouldn't do it for weeks at a time. Running fuel cleaner additives regularly and keeping the tank pretty full reduced the problem for a time in my case. But since you are having start issues, your pump is probably already pretty far gone.
 
#10 ·
if it want start turn the key about 5-10 times. it will build up the fuel pressure that needs to start. When fuel pumps go no fuel pressure. Has to have enough fuel pressure to start. Both Suburbans took to the shop for diagnosed. don't know much about cars besides when I have to spend my money to fix them then I know what to look for. But most of the time its cheaper to have it diagnosed then fix it. That's why I got my Patriot I'm tired of buying clunker

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#11 ·
nysfro585 said:
if it want start turn the key about 5-10 times. it will build up the fuel pressure that needs to start. When fuel pumps go no fuel pressure. Has to have enough fuel pressure to start. Both Suburbans took to the shop for diagnosed. don't know much about cars besides when I have to spend my money to fix them then I know what to look for. But most of the time its cheaper to have it diagnosed then fix it. That's why I got my Patriot I was tired of buying clunker

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#12 ·
Computer codes are for emissions. And it has to do it in different cycles for it to trip a come. yes other codes will pop up for none emissions codes. most codes 95% of all codes are from the computer telling that the emissions is off so it will trip a code. newer cars have more none emissions codes for motors, transmissions and tires. Millions of dollars to invest into the next car but no sensors yet to let you know when your fuel pump is below fuel pressure.

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#13 ·
If it's a sensor, it should throw a code. Throttle position sensor and/or crank sensor both can cause those symptoms. If it's not throwing a code, it's most likely your fuel pump. I've had those same issues on multiple vehicles. If it's throwing a code, just head to autozone or advanced auto and they should loan you a magic box to see what the issue is.
 
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#14 ·
Like Nysfro said, cycle the key from off to run several times to build fuel pressure before turning the key to the start position. If this makes it start more often, it's likely the fuel pump or pressure regulator starting to fail. Sadly, our Patriots use a returnless fuel system and the regulator is built into the fuel pump. On the plus side however, under the back seat there are access panels to get to the fuel pump and siphon pump (4x4 model) so no need to drop the tank to replace them.
 
#15 ·
My Tracker did this, and turned out it was the switch in the shifter, shifter position switch, I think it was called. If I moved the shifter out of Park, and back into park, several times, I could get it to start.
 
Discussion starter · #16 ·
todde702 said:
Like Nysfro said, cycle the key from off to run several times to build fuel pressure before turning the key to the start position. If this makes it start more often, it's likely the fuel pump or pressure regulator starting to fail. Sadly, our Patriots use a returnless fuel system and the regulator is built into the fuel pump. On the plus side however, under the back seat there are access panels to get to the fuel pump and siphon pump (4x4 model) so no need to drop the tank to replace them.
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Do you have to take the back seats out? How do you get to the panel exactly? I have two 12" subs right behind the back seat which isnt a bad deal to have to take out it's just time consuming. I appreciate the advice.
 
#17 ·
jburnett said:
Do you have to take the back seats out? How do you get to the panel exactly? I have two 12" subs right behind the back seat which isnt a bad deal to have to take out it's just time consuming. I appreciate the advice.
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You only remove the lower portion of the back seat, and it's super easy.

All you need is a Torx adapter for your ratchet or breaker bar (T55 is the correct size, they carry them at Autozone). There are two large bolts down by the floor that hold the rear cushion down; remove those, lift the front of the cushion, and the back should pop out. Set it aside, and the fuel pump is under one of the black plastic access panels (just pop it out with a flathead screwdriver or something similar). From there, you have access to the pump. Good luck!
 
#19 ·
BAD AUTO SHUT-DOWN RELAY - OMRON# G8HE-1C7T-R1-DC12 / 2361A13

Mine at 120K miles was hard starting one day, then a few days later just cranked without starting. There is a relay box buried underneath the battery where it can be found, according to my mechanic. Jeep starts fine after relay was replaced. Hope this helps someone...
 
#20 ·
On my friend's 2007 Patriot had the same situation. He removed the starter solenoid and checked it at AutoZone. it was OK. Found it was bad contact on the positive side of the battery, on the red cable that gives power to the fuse box. !! Clean it reconnect, tighten screw and Walaaa... perfect again.
 
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