Just cut out on the Fwy, fuel issue Options

[Tdskip]

Rather than guessing and replacing random parts in the hopes that the problem goes away though you need to actually diagnose what isnt working and then address that system.

+1000

You need a definitive answer on if you are getting spark and fuel.

Autozone has spark testers for under $10. Buy one and report back, we can take it from there.

[jim_hoyland]

If a fuel pressure gauge is installed in-line, fuel pump problems are easier to analyze.
If engine quits and the fuel pressure goes to zero, it’s fuel pump or it’s wiring
If engine quits and fuel pressure is say 2&, it’s not fuel pump; move on to ignition
Big question for you is: whether gas is being pumped. I would disconnect the fuel line in the engine compartment and turn the key. No gas, maybe kinked fuel hose or clogged filter; and, don’t forget there is a mesh screen sock inside your fuel tank.
Hopefully, you see gas (IMG:style_emoticons/default/smile.gif)

[euro911]

I sent JP a PM, offering to run up there to help diagnose the issue(s) ... waiting to see if/when it'd be a good day/time to do it (IMG:style_emoticons/default/popcorn[1].gif)

"Just give me some advance notice - and think about posting a 'Tech Day' on World to see if a maybe a couple of other local members could join in to brainstorm the issue(s).

I have compression tester, a leak-down tester, tach/dwell meter, timing light, floor jack & stands, etc., all ready to go (IMG:style_emoticons/default/idea.gif) ... (have wrench, will travel) (IMG:style_emoticons/default/laugh.gif)"

If JP's OK with that, are there a couple of other 'locals' available to come give a hand, if he puts out a casting call?

[Tdskip]

I sent JP a PM, offering to run up there to help diagnose the issue(s) ... waiting to see if/when it'd be a good day/time to do it (IMG:style_emoticons/default/popcorn[1].gif)

"Just give me some advance notice - and think about posting a 'Tech Day' on World to see if a maybe a couple of other local members could join in to brainstorm the issue(s).

I have compression tester, a leak-down tester, tach/dwell meter, timing light, floor jack & stands, etc., all ready to go (IMG:style_emoticons/default/idea.gif) ... (have wrench, will travel) (IMG:style_emoticons/default/laugh.gif)"

If JP's OK with that, are there a couple of other 'locals' available to come give a hand, if he puts out a casting call?

I might be able to help over the weekend (if extra help is needed)

[trick-e]

I didn’t read all of the responses, but I’m just solving a similar issue.
Mine progressively got a little harder to start, and sometimes it wouldn’t. Now, it won’t start at all.

Confirm the pump runs when turning the key. If it does spray starter fluid into the throttle body to confirm it tries to start. If it tries, change the fuel filter first.
Next, Remove the fuel sender and/or expansion tank.
Shine a flash light into the tank.

How does the strainer look? Mine looked like someone had sealed the tank with that little mesh strainer in place. It was only a matter of time.
I’ll be pulling the tank and putting in a new strainer.

[johnpierre]

ok so here is the latest with my drama:

#1 as I stated I replace the fuel relay, didn't solve the issue

#2 a friend of mine helped me replace the fuel pump in my 2001 chevy - took him all of 2 hours to drop the tank and swap out the pump and put it all back together. since he was so proficient at that I reasoned why not get him to trouble shoot the 914. this is what we found.

for sure it is getting spark - btw I purchased some new plugs and I also purchased a new battery - figured it could not hurt.

so now that the relay not the issue I am guessing the next thing to eliminate is the fuel pump? right?

I guess I should just order one from pelican and get it in there with a new filter and at the very least I have a new fuel pump - not that expensive of a part.

if the car starts I know that was issue and if not then I can move on to another part of the chain.

what are your thoughts ??? maybe I just check the fuel filter fist - see if it is clogged ???

-jp-

gotta get this baby running - the weather is perfect to drive it now....

[johnpierre]

(IMG:style_emoticons/default/icon_bump.gif)

[rjames]

Replacing the fuel pump might fix it, and then it again it might not.
Have you checked the fuel pressure yet as others have already suggested?

[rhodyguy]

Was the tank sock examined? Partially fouled, they can suck flat under vacuum. = no fuel. No pump vacuum the sock releases and fuel might flow. For a while. Only takes a couple of minutes when the tank is out to r&r. Note the direction the supply spigot is pointing. If the pump is not the problem, swapping it out is a waste time and money.

[johnpierre]

Replacing the fuel pump might fix it, and then it again it might not.
Have you checked the fuel pressure yet as others have already suggested?

so I just checked with my friend and he said when I was turning the key there was fuel pressure and he could tell fuel was in the rails

so I guess it is not the fuel pump

is there an ECU on this car - the reason I asked is there is a box behind the batter that looks like a electridle unit - could the problem be in there ???

[GregAmy]

Have you checked the fuel pressure yet as others have already suggested?

Yup.

And before I bought a fuel pump, I'd ensure thre was 12V going to it. My wager is still on a problem with the electrical connectors/pins to the relay plate. I noted before what I did to resolve the same issue...

http://www.914world.com/bbs2/index.php?s=&...t&p=2538175

[914Toy]

Replacing the fuel pump might fix it, and then it again it might not.
Have you checked the fuel pressure yet as others have already suggested?

so I just checked with my friend and he said when I was turning the key there was fuel pressure and he could tell fuel was in the rails

so I guess it is not the fuel pump

is there an ECU on this car - the reason I asked is there is a box behind the batter that looks like a electridle unit - could the problem be in there ???

How did your friend know there "was fuel pressure and he could tell there was fuel in the rails"?

[sixnotfour]

Has your pump been updated or still have the 3 port in the back ?

[rjames]

Replacing the fuel pump might fix it, and then it again it might not.
Have you checked the fuel pressure yet as others have already suggested?

so I just checked with my friend and he said when I was turning the key there was fuel pressure and he could tell fuel was in the rails

so I guess it is not the fuel pump

Checking for fuel in the fuel rails isn't the same as checking the fuel pressure. To rule out the pump or the fuel pressure regulator you need to know what the fuel pressure actually is.

[euro911]

JP, You can pick up a fairly inexpensive fuel pressure gauge at AutoZone or Pep Boys.

Also pick up a couple of small hose clamps and insert it permanently inline in the supply line - somewhere you can see it in the engine bay (IMG:style_emoticons/default/idea.gif)


https://www.autozone.com/test-scan-and-spec...ster/273356_0_0

[76-914]

https://members.rennlist.com/pbanders/FPChecklist_frame.htm

[johnpierre]

https://members.rennlist.com/pbanders/FPChecklist_frame.htm

hey there

thank you for the link but I can't seem to open it
-jp-

[euro911]

Try this link, JP ... https://members.rennlist.com/pbanders/#Details

Scroll down to the D-Jetronic links

[jim_hoyland]

And, I had this happen, the fuel pump ground must be secure. A loose or poorly crimped ground will stop that pump.
Common on ‘75s where there’s a chassis spade for the ground.