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Search: Posts Made By: twisfm
Forum: 3.0 Vulcan Tech 06-07-2015, 01:40 PM
Replies: 17
Views: 3,013
Posted By twisfm
Re: 1991 - Starts when engine is cold not when hot. Can start by giving gas

I think i fixed it!!

I did some more research and read more about the fuel pump relay. Decided to just replace it for $17.

Truck has been running perfectly and starting no problem!!! Thanks...
Forum: 3.0 Vulcan Tech 06-07-2015, 09:51 AM
Replies: 17
Views: 3,013
Posted By twisfm
Re: 1991 - Starts when engine is cold not when hot. Can start by giving gas

OK. So.

I got a fuel pressure gauge today and here is what I found.

When i prime the system i only get about 9 PSI. When the truck is idling it is only about 31 PSI. If i rev it, it goes to...
Forum: 3.0 Vulcan Tech 06-06-2015, 08:42 PM
Replies: 17
Views: 3,013
Posted By twisfm
Re: 1991 - Starts when engine is cold not when hot. Can start by giving gas

^^ Ya i have been searching around. I found a couple of loose connects that I tightened up. I noticed there was a bad leak at the brake booster line that I tried to fix. I am use to seeing a check...
Forum: 3.0 Vulcan Tech 06-06-2015, 08:10 PM
Replies: 17
Views: 3,013
Posted By twisfm
Re: 1991 - Starts when engine is cold not when hot. Can start by giving gas

^^ Awesome thanks. Ill do that tomorrow.

Today i got some MAF cleaner and cleaned the MAF while also taking about the entire intake system again and cleaned it. Also made sure everything was...
Forum: 3.0 Vulcan Tech 06-05-2015, 03:01 PM
Replies: 17
Views: 3,013
Posted By twisfm
Re: 1991 - Starts when engine is cold not when hot. Can start by giving gas

Ya the 1991 has a Air intake sensor. It is new.

What exactly should I check for on the MAF?
Forum: 3.0 Vulcan Tech 06-04-2015, 07:30 PM
Replies: 17
Views: 3,013
Posted By twisfm
Re: 1991 - Starts when engine is cold not when hot. Can start by giving gas

The saga continues.

Got a brand new IAC and truck still has the same issue.

Any other ideas?
Forum: 3.0 Vulcan Tech 06-02-2015, 04:41 PM
Replies: 17
Views: 3,013
Posted By twisfm
Re: 1991 - Starts when engine is cold not when hot. Can start by giving gas

^^ Thanks. Ill take a look at it.

Any other suggestions.

I ordered a new IAC valve/Solenoid.
Forum: 3.0 Vulcan Tech 06-01-2015, 04:12 PM
Replies: 17
Views: 3,013
Posted By twisfm
Re: 1991 - Starts when engine is cold not when hot. Can start by giving gas

Fuel Pump relay is fine

Tried cleaning the air idle valve. Didn't seem to work.

Cant find where the EGR is. Could this cause the issue and other idea?
Forum: 3.0 Vulcan Tech 05-31-2015, 02:45 PM
Replies: 17
Views: 3,013
Posted By twisfm
1991 - Starts when engine is cold not when hot. Can start by giving gas

FIXED - Was the fuel pump relay. Read this for more info. http://www.explorerforum.com/forums/showthread.php?t=208097&highlight=relay

Hi All,

I've done some searching but am not sure if I have...
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