AboutCAJUNSC/RAMBLER390 Expertise 1998 and NEWER questions ONLY!! I WILL REJECT QUESTIONS FROM 1998 BACK. Electrical diagnosis. Brake Diagnosis. Driveability, Service Engine Soon Lights. Some Engine mechanical. Tires and wheels. ABS. HVAC. Air Bag (SIR). Interior, seats, etc... 6.6L Duramax Diesel diagnosis. 6.5L diesel diagnosis. I WILL not answer Alignment questions OR carburetor questions. No heavy internal transmission
I need YEAR, MAKE and MODEL of vehicle, and ENGINE SIZE and TRANSMISSION type, IF applicable to the question.
I work at a Large, Busy GM Dealership
Last thing, my answers are JUST SUGGESTIONS and ADVICE and you should ALWAYS CHECK with your mechanic for proper diagnosis and repair.
Experience 18 Years GM Dealership experience as an "A" line tech. ASE MasterTechnician. 100% GM certified MTC Certified.
Education/Credentials High School graduate. No College or higher learning.
Question I just a fuel pump go bad. I replaced the fuel pump and filter, now I have a hard time getting the truck to start. I thought maybe I had bought a bad pump so I took it out and returned it for another one, Both of which I bought from O'reilly Auto parts, It is still doing the same thing with the new pump. After it starts, it will run fine. Any help is appreciated.
Answer Hi
Check the fuel pressure regulator for ANY sign of fuel. If you remove the vacuum line from regulator and there is ANY gas, it is faulty.
(Just in case.. pressure regulator is located on the DRIVERS side fuel rail about half way, and has a small hard vacuum line going to it one end and the intake other end.)
If it is OK I have some questions.....
What is hard to start, like cranks over for 30 seconds before starting?
or starts and "chuggles". Or start and stall, start and stall start and finally stay started?
Of have to open throttle to get it to start?
Please follow post back
Hope this helps
Pawl
