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2003 Chrysler Town and Country fuel issue

Tiny
ADOLFOCORDEIRO
  • MEMBER
  • 2003 CHRYSLER TOWN AND COUNTRY
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 174,000 MILES
Recently I went to a restaurant and when getting in the vehicle, it took 5 cranks before it started. Its had a shaking idle for a while but never something like this. At home checked fuel pressure and got nothing until it started. I decided to replace the pump thinking the regulator was the issue, been built on the pump assy. I installed 2 new fuel pumps and I hear the pump coming on when the key on but there is no fuel pressure at all, it wont start at all. I bought the pump from A1auto. I've checked the 20a fuse, the relay, all checks ok. Tempted to put the old pump back on just to see if actually starts. What do you think
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Thursday, July 16th, 2015 AT 3:20 PM

9 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure with a gauge autoparts rent it
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Friday, July 17th, 2015 AT 6:24 AM
Tiny
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  • MEMBER
  • 5 POSTS
Hey there, that's for the reply. Only 2 codes p1684 battery disconnect and p0071 ambient air temp sensor circuit low. The engine light came on as I was pulling in the drive way and the engine was stalling. Fuel pressure is 0. I have pulled the line off as far as the pump, nothing comes out, not even a drip. Ex Chrysler tech in 2001, never seen something like this. I hear it when the key turns on, but no pressure. Thanks
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Friday, July 17th, 2015 AT 10:37 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Has to be something leaking inside tank or broken hose connecting pump. Or it's hooked up backwards. Should be 53-63 psi or the strainer is plugged.
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Friday, July 17th, 2015 AT 12:07 PM
Tiny
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  • MEMBER
  • 5 POSTS
Can't hook it up backwards, the fittings are different sizes
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Friday, July 17th, 2015 AT 12:35 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I fyou don't have pressure then something is wrong with it
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Friday, July 17th, 2015 AT 12:50 PM
Tiny
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  • MEMBER
  • 5 POSTS
I actually dropped the gas tank again and re-installed the old pump. Still have the same issue, I sprayed an entire can of brake cleaner through the intake and had it running for a few minutes until I ran out of the brake cleaner. I was reading that there is a transistor inside the pcm which sends the signal for the pump to actually start pumping. I'm running out of ideas, after 3 fuel pumps, and still no pressure
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Friday, July 17th, 2015 AT 4:12 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
No idea what to tell you, after startup the pump runs off of oil pressure gauge I don't think the transistor is the problem it would not get any power to it which you say it is so no idea what to tell you. Unless it's a blocked line, etc.
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Saturday, July 18th, 2015 AT 6:07 AM
Tiny
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  • MEMBER
  • 5 POSTS
Thank you any ways, I will tow the vehicle to the dealer, I give up as well, I don't have any service manuals at home. I actually disconnected the lines at the pump, still nothing comes out at all, yet I can hear turn on when key is on. Again thank you for you help.
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Saturday, July 18th, 2015 AT 6:45 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
You dont' have to go to a dealer, many garages do just as good of work for a cheaper price.
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Saturday, July 18th, 2015 AT 7:04 AM

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