Jmthunderbird
New Member
- Joined
- Nov 9, 2010
- Messages
- 11
- Reaction score
- 0
- Points
- 0
- Location
- phoenix, Az
- Vehicle Year
- 1989
- Make / Model
- Ford
- Engine Size
- 2.9
- Transmission
- Manual
hello all, first id like to say thanks for your collective knowledge on this site. i have searched, but i haven't really found a problem similar to mine.
in the mornings, its hard to start. VERY hard. it takes 5 or 6 tries of 15-20 seconds of cranking. once it starts, though, it idles like a sewing machine (just adjusted the valves and did a tune up). driving normal, it runs great, but under full load, it has a bit of a stumble. sometimes it there, sometimes its not. it will pull real well for a few RPM's, then back off like you let up on the pedal some, then it pulls again. it get worse in lower gears. i suspected fuel pressure, so i hooked my gauge up, i get 35 at idle, then as i accelerate, i get 38 at 2000, 35 at 3000, 32 at 4000 and 30 at 5000. it slowly drops as rpms go up. im used to turbo cars, with pressure going up with boost, and down with vacuum, so this has me stumped... do my readings seem correct, or do i have a fuel system problem?
also, id like to know how many pumps i have, and how many filters i have on an 89 B2 4x4. ive seen mention of dual pumps and dual filters on the rangers, wasnt sure if the B2 had the same thing?
thanks guys!
-J0N
edit- i tried a few things that other members tried, with no change. i tried starting it with the IAC unplugged, took just as long, and still wouldn't idle. tried with TPS unplugged, and it wouldn't start at all.
i have now added a new air filter to this list of things i changed. no real change in starting.
-J
in the mornings, its hard to start. VERY hard. it takes 5 or 6 tries of 15-20 seconds of cranking. once it starts, though, it idles like a sewing machine (just adjusted the valves and did a tune up). driving normal, it runs great, but under full load, it has a bit of a stumble. sometimes it there, sometimes its not. it will pull real well for a few RPM's, then back off like you let up on the pedal some, then it pulls again. it get worse in lower gears. i suspected fuel pressure, so i hooked my gauge up, i get 35 at idle, then as i accelerate, i get 38 at 2000, 35 at 3000, 32 at 4000 and 30 at 5000. it slowly drops as rpms go up. im used to turbo cars, with pressure going up with boost, and down with vacuum, so this has me stumped... do my readings seem correct, or do i have a fuel system problem?
also, id like to know how many pumps i have, and how many filters i have on an 89 B2 4x4. ive seen mention of dual pumps and dual filters on the rangers, wasnt sure if the B2 had the same thing?
thanks guys!
-J0N
edit- i tried a few things that other members tried, with no change. i tried starting it with the IAC unplugged, took just as long, and still wouldn't idle. tried with TPS unplugged, and it wouldn't start at all.
i have now added a new air filter to this list of things i changed. no real change in starting.
-J
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