• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

99 2.5 Starting Problem.


Leigh

New Member
Joined
Jul 20, 2011
Messages
25
Reaction score
0
Points
1
Vehicle Year
1999
Make / Model
Ford Ranger 2WD
Transmission
Manual
For the past Month or so, Though it cranked right up effortlessly, from a cold start; after stopping someplace for "awhile" it became problematic, requiring rapid pumps of the pedal to start.

Yesterday, initially started, & drove normal, but after 2nd stop it wouldn't start.
Tried all the "usual" (Pedal-up, Pedal down, Pump pedal-)--, cranked strong, but no "attempt" of ignition. After sitting 45 minutes, it stared "normally", & continued to start after several more stops.

Did the same again today,

Actron Pocket Scan, & with engine running, got following Listing: "02 Sensor", "02 HTR", "COMP", "CATALYST", "EVAP", "EGR"; but no Code #'s

Problem seems to be intermittent fuel "starvation" ; similar to the symptoms of Vapor -lock, but has gotten progressively worse. Possibly Fuel-pump "beginning to fail???

Regards,
Leigh
 
Last edited:


Leigh

New Member
Joined
Jul 20, 2011
Messages
25
Reaction score
0
Points
1
Vehicle Year
1999
Make / Model
Ford Ranger 2WD
Transmission
Manual
UPDATE: Pressure Check.

System failed to hold pressure Key=On / Eng. = OFF ( Maintained 62 PSI running at idle).

Determined that Fuel pump Check-valve is not working, so needs Pump module Replacement.

Since the system is not maintaining fuel pressure because of the Check-valve, I still don't understand why it would start right up cold, but not after it's been driven "awhile"???
 

tomw

Well-Known Member
U.S. Military - Veteran
Joined
Aug 15, 2007
Messages
1,613
Reaction score
46
Points
48
Location
toenails of foothills NW of Atlanta
Vehicle Year
1985
Make / Model
ford
Engine Type
2.3 (4 Cylinder)
Engine Size
lima bean
Transmission
Manual
2WD / 4WD
2WD
My credo
vertical and above ground
As noted on the other site, I would suspect plastic parts warping when warmed up, but just thought of the computer adding extra fuel when cold. The mix is enriched when cold to help cold combustion & mix. Maybe there's better flow, and some 'pooling' in the intake that helps.
Dancing on the gas pedal does nothing to the mix, there's no accelerator pump to squirt more fuel. Holding the pedal down a bit from base idle might be effective if the IAC is being unhelpful. The repeated cycling of the ignition should get fuel into the fuel rail, and make warm starting easier if it has drained back, and doesn't want to start on the reduced fuel flowed when fully warmed up.
tom
 

Sponsored Ad


Sponsored Ad

Staff online

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Truck of The Month


Shran
April Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top