After exiting the highway, it began to surge as if it wanted to stall. Accelerating seemed to keep it going. The next day, ran fine. The next morning the vehicle would not start. Turn the ignition key to "on" and the fuel pump and cooling fan would run constantly and the check engine light would flicker. No codes are in the ECM and all fuses are good. Today the fuel pump does not come and I replaced the control relay module. the result, no change.
I have always heard that a constantly running fuel pump and cooling fan is an indicator that your ecu is going bad, horrible words to hear i know but definitely do some research on this and if it is the problem luckily there are decent finds in scrap yards to be had for little money. hope this helps and sorry about the bad luck :(
SOURCE: My 99 s10 has no
IF FUEL PUMP RELAY IS NOT WORKING THE COMPUTER IS NOT READDING IT THEIR IS NO BYPASSING THE COMPUTER(ie) DOT CODE on that model vehical THE MASS AIR SENSOR REGULATES 90% OF HOW THE IGNITION TIMING RUNS I USED TO GET AWAY WITH IT ON OLDER MODELS NOT ANY MORE!?
SOURCE: After replacing fuel pump it run when it wants to.
In our shop we have had the same problem before, it turned out to be a new defective fuel pump by Bosh, two bad ones in a row, try a ohm meter on the pump when it runs and when does not compare the numbers , if they are very different, try a new brand of pump.
SOURCE: cranks but won't start like it has no gas
Sorry to burst your bubble but a 97 jetta no matter what model including the trek I and trek II dont have transponders in the keys that didnt start untile the 2000 jetta's
SOURCE: 1996 ford windstar lx 3.8l powertrain
are u referring to the IRCM? (Integrated relay control module), when u say proper placement what do u mean by this? Have u run a test of the IRCM with a OBD2 scanner, It will produce a code if it is the problem, if u have not scanned the system I strongly suggest you scan the system which will run the IRCM through an active functional test. B3below is the proper relay that a trusted on line parts dealer shows for this van and it does cross over to the ford number u gave.
AIRTEX / WELLS Part # 1R1570 {#20250, F4OY12B577B, F68Z12B577AA, F78Z12B577AA, F78Z12B577AB
SOURCE: fuel pump not running .check engine light not lighting up when key is on
you should problobly take it in to the shop. you checked the basicks but thepeople int eh shop have better tools.
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