Engine/Transmission (1994 - 1998) Check this out-Fuel system Air Leak-FYI

[BTanzini]

I have been fighting (what I thought was a fuel system air leak) for the past 2 months or more. I replaced the fuel lines with regular fuel line and I thought problem solved, then it started again after a few days so, I changed to (high pressure fuel injection line $5. 00 @ foot at Autozone) and truck started fine for awhile then started again, so I bypassed the preheater-filter and truck started fine for awhile again, problem solved so I thaught, then it started again and every time I checked the fuel shutoff seliniod it was energizied so by this time I was ready now to drop the fuel tank and check the lines and fittings, when one day I went to start the truck and the batteries where dead, one batt had 8 volts, the other had 10 volts. luckily I was in my drive and my son was in town where he could pick me up a battery, (one batt was under warranty one was not) which he did and I have not had a starting problem since 1 month (Knock on wood), I' not superstisus, so I reinstalled the prepfilter heater and every thing is starting fine once again. Hopefully Problem solved.

Bottom line is make sure to check batteries also when you have a hard starting problem, apparantly low voltage will also cause hard starting, but I would think that 10 volts would not be enough to start engine. In the past my batt's where either good or bad no in between. Hope this info helps.

 

[tgordon]

I hope you replaced both of the battaries, an dnot just one again. Anytime two battaries are connected replacing only one may solve the problem for now, but it will work harder to compensate for the bad one, especially at that low of voltage.

 

[BTanzini]

Have replaced booth batteries.

 

[KKaufman]

Thanks for the info, always good to be aware of something like this.

 

[Vaughn MacKenzie]

Whenever the batteries are pretty weak on my trucks I have to manually pull up the shutdown solenoid in order to start it. It's amazing how my 400,000 mile '96 will start with barely enough juice to turn it over.



Vaughn

 

[I-6DZL]

Whenever the batteries are pretty weak on my trucks I have to manually pull up the shutdown solenoid in order to start it. It's amazing how my 400,000 mile '96 will start with barely enough juice to turn it over.



Vaughn

I've also had to do that, with a lil throttle to boot. Fired right up and made it to the battery charger.



Curtis

 

[BTanzini]

I-6DZL-I tried to charge the batts but would not take charge.

 

[MHalloran]

I have been fighting (what I thought was a fuel system air leak) for the past 2 months or more. I replaced the fuel lines with regular fuel line and I thought problem solved, then it started again after a few days so, I changed to (high pressure fuel injection line $5. 00 @ foot at Autozone) and truck started fine for awhile then started again, so I bypassed the preheater-filter and truck started fine for awhile again, problem solved so I thaught, then it started again and every time I checked the fuel shutoff seliniod it was energizied so by this time I was ready now to drop the fuel tank and check the lines and fittings, when one day I went to start the truck and the batteries where dead, one batt had 8 volts, the other had 10 volts. luckily I was in my drive and my son was in town where he could pick me up a battery, (one batt was under warranty one was not) which he did and I have not had a starting problem since 1 month (Knock on wood), I' not superstisus, so I reinstalled the prepfilter heater and every thing is starting fine once again. Hopefully Problem solved.

Bottom line is make sure to check batteries also when you have a hard starting problem, apparantly low voltage will also cause hard starting, but I would think that 10 volts would not be enough to start engine. In the past my batt's where either good or bad no in between. Hope this info helps.

Bt, did it crank and crank and then start , a little rough, and then smooth out? (thats mine) Been workin' on my hard start problem also. Mike

 

[MHalloran]

What's the best way to check the batteries for actual out put voltage? Thanks for any replies. Mike

 

[BTanzini]

When I checked mine I isolated them from one another for a correct reading on each.