electical --fuel pump

[toaping]

toaping here I have a problem with my 2005 astro van. when we have cool to cold weather in south la. the van willnot start. Ican hear the fuel pump working for 1 to 2 seconds that stops when i engage the starter. This has happened several times... Mostly when i have less than 1/4 of a tank. I can try until the battery begans to weeken. I put a full charge the battery and it fires off. Is there a relay or temp relay that allowes the engine to start? Help

[Stroverlander]

Try starter fluid into airbox to see if fuel problem. If still no start, probably spark and check dist cap, rotor, plugs, wires and coil.

If fuel related, possibly the pump is too weak to build enough pressure to start but will run on lower pressure.

[LiftedAWDAstro]

Pull the doghouse and put a fuel pressure tester on the Schrader valve. You should see 52-60 psi with the key cycled on. If it's less than 50 psi, the van won't start.

[Karen]

There is a fuel pump relay...It is on the left hand side under the hood there is an oblong one which is for your A/C and a square one next to it that is the one. I discovered this after swapping it with one from a wrecking yard thinking it was for the ac , my car wouldn't start. I wish I could tell you I was smart enough to instantly know that was the problem. No... it was starting and ran great after priming. If you want to see an astro van fire up quick I suggest a teaspoon of lighter fluid in each bowl. LMAO Anyway Went thru all the posts here and thought it was probably the fuel pump when I was scanning parts I spied the little relay I had replaced. Switched it back with the old one and it fired right up no problem since. SO definetely check that relay before you go through all the bullshit of replacing the fuel pump.

[AstroWill]

toaping here I have a problem with my 2005 astro van. when we have cool to cold weather in south la. the van willnot start. Ican hear the fuel pump working for 1 to 2 seconds that stops when i engage the starter. This has happened several times... Mostly when i have less than 1/4 of a tank. I can try until the battery begans to weeken. I put a full charge the battery and it fires off. Is there a relay or temp relay that allowes the engine to start? Help

Sounds like an electrical problem.
1. Check your battery, take it to LAPS/Walmart they will test it for free.
2. If that checks out, check/clean the big wires from chassis>battery, battery>starter.
3. Check/clean/test/repair fuel pump wires/connections/grounds.