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dylan Beers Posted on Jan 25, 2017
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Replaced fuel pump on 2007 buick rendevous, replaced battery, both are working, but STILL the car starts and then immediately shuts off...PLEASE HELP!

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bigdawg7299

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  • Buick Master 2,559 Answers
  • Posted on Jan 25, 2017
bigdawg7299
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You need to connect scan tool and see what codes it shows. There are dozens of causes for this condition

Jeff Armer

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  • Buick Master 15,575 Answers
  • Posted on Jan 25, 2017
Jeff Armer
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Anti-theft problem ? Security light lit on the instrument cluster ? Have check for DTC'S - diagnostic trouble codes . The PCM - engine computer disables the fuel injectors .

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0helpful
2answers

Location of fuel pump reset switch for 2002 buick rendevous

There is no reset switch, you likely have a bad fuel pump, try this use a 2x4 or soft hammer to rap on the fuel tank as someone turns the switch on and off when you hear the pump hum the car will start and run but change the pump immediately. Almost every other problem that occurs in the fuel system will cause the check engine light to come on and it will set a readable code. I hope this helps. Take care.
0helpful
1answer

04 Buick rendevous. Hit curb and now won't start. Fuel pump kicks on and it's getting spark but will not start. Any ideas?

Is there B+ voltage to the fuel injectors ? Blown fuse's ? Security light lit on the instrument cluster ? If the vehicle will run with you sparying starter fluid in the intake , low or no fuel pressure or injectors not spraying fuel into the engine. Hooking up a fuel pressure test gauge an checking pressure an flow would be the thing to do , not guessing ,because you hear the fuel pump turn on . That does not mean it's making fuel pressure . Your best bet , take it to a qualified repair shop .
0helpful
1answer

MY BUICK 06 BUICK RENDEVOUS DOES NOT HAVE POWERE AT THE FUEL PUMP. WHAT CAN I DO TO FIX IT

GM Fuel Pump Relay Testing Watch this video ,all GM vehicles work the same way . Turn the key on ,the PCM will energize the fuel pump relay turning the fuel pump on for two seconds to prime the fuel system.
1helpful
1answer

Keep putting in fuel pumps on 2007 buick rendevous and they work for a day or so and they fail? Could it be something other than the fuel pump?

Electrical problem ! Unless your using cheap fuel pumps . Did you try a Delco GM fuel pump . Do a voltage drop test on fuel pump electrical circuir also amp draw . Testing Electric Fuel Pump Problems with Voltage Drop Test
0helpful
1answer

Fuel injector 2007 buick rendevous my car won't start because there isn't enough fuel getting to the engine how can I fix this

How long since a tune-up? Any applicable trouble codes? Is fuel your only problem? Engine cranking, you have spark at the plugs and fuel injector pulse? Your security system isn't an issue?
If the only problem is fuel, use a gage and check proper fuel pressure.
2helpful
2answers

My 2003 buick rendevous when it decides not to start you have to get under the car unplug the wiring to the pump and usually it cranks I changed the pump and the wiring horness still does it it may run...

Could be bad fuel pump or the connections. A fuel pump relay that translates the ECU (brain) to when fuel is needed from the pump. The ECU receives many sensor inputs to decide how much fuel to deliver. The sensors are bad or their connections
are corroded. My experience is that connections cleaned and scraped to bright metal bring them back to new conditions. This may also be the Fuel pump connection situation even though, the fuel pump is new? Have the ECU error codes read at your favorite auto parts store. That may help diagnose an better than my guesses. By the way we are all volunteers, so please give us a chance to respond.
0helpful
1answer

2007 buick rendevous security light came on and now the car wont start...what could b the problem

It also sounds like you may have a shorted cell in your battery. Have it checked under load. Walmart does it for free.

Good luck,

Marty
0helpful
1answer

I am having the same problem that these folks have described. My 2007 Buick Rendevous will sound like it is going to crank and then it doesn't. It will take about 10 or 12 time doing this and then I will...

could be alot of things but most normally it sounds as if the fuel pump may not be working correctly. whens the last time you had or changed the fuel filter could be dirty. have the fuel pressure checked. have you looked at your air filter? this is where i would start with the diagnosis
0helpful
1answer

Locate fuel filter 2004 buick rendevous

It is in the fuel tank, according to the documentation. It gets replaced with a fuel pump failure.
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