2.3L ('83-'97) Stumbles and dies on cold start and after sitting.

[TacoBelleGirl]

Same conditions but yes it is a different gauge. I was skeptical of the other one from the start (I was renting from autozone) so after that test I went and got my own and it’s reading better now.

Still dropping off to 0 basically instantly?

 

[Ranger_97]

Still dropping off to 0 basically instantly?

No, holding steady at 38 psi 10+ minutes after shut off.

 

[TacoBelleGirl]

No, holding steady at 38 psi 10+ minutes after shut off.

Interesting.... Well, keep us posted

 

[scotts90ranger]

The immediate drop off was probably the check valve at the outlet of the old pump, why I don't worry about that too much... oddly enough probably what the startup problem with my '97 is, just don't want to pull the bed yet while the pump is working fine otherwise...

Just to simplify things with all that you've done, what are the symptoms that are left? I know you've gotten rid of a couple, it gets confusing with the parts changed and such...

 

[Ranger_97]

The immediate drop off was probably the check valve at the outlet of the old pump, why I don't worry about that too much... oddly enough probably what the startup problem with my '97 is, just don't want to pull the bed yet while the pump is working fine otherwise...

Just to simplify things with all that you've done, what are the symptoms that are left? I know you've gotten rid of a couple, it gets confusing with the parts changed and such...

To put it simply, none of the parts changed so far have made the starting any better. Really no noticeable change from the original symptom other than my gas mileage has gotten better since replacing the fuel pump but still very rough on cold starts, easy fire up but struggles and shakes to catch it self on the idle down from fire up.