SPONSORED LINKS

Fuel pump

Tiny
PRINALD SMITH
  • MEMBER
  • 2003 VOLKSWAGEN PASSAT
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
The car will not start. It turns but no start. Battery is new, plugs are new, pump runs when I put it direct to twelve volts. Did a few checks and found that the fuel pump is only getting 3.4 volts.
Saturday, March 17th, 2018 AT 3:41 PM

2 Replies

Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
See how many volts are reaching the fuse #28 in the fuse panel when the key is first turned to run. Then if need be, check how many volts is present at the fuel pump relay socket pin 17 with the relay removed.
Images (Click to make bigger)
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, March 18th, 2018 AT 5:28 AM
Tiny
F4I_GUY
  • MECHANIC
  • 3,302 POSTS
Scan for faults and post results, if you have around 8+ random engine faults it’s a sign that the FP relay and load reduction relay have failed. Post the faults first and I will be able to tell you if they are being caused by the relay.

If not, the wiring under the carpet on the a-pillar on those cars due start to corrode/short and cause strange electrical problems.
Was this
answer
helpful?
Yes
No
+1
Tuesday, March 27th, 2018 AT 6:52 PM

Please login or register to post a reply.

Related Fuel System Fuel Pump Content

Fuel Pump Replacement
VIDEO
Fuel Pump Replacement
Instructional repair video
Fuel Pump
GUIDE
Fuel Pump
Fuel Pump Features
VIEW MORE

Sponsored links