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Old 07-11-2006, 21:51   #1 (permalink)
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confused 1992 Ford Explorer help needed

The truck runs fine until it warms up, and then after it has been running for a while and you give it gas it acts like its starving i have changed all the filters, sensors (o2, mass air flow, and the rest i cant remember right now) the fuel pressure reg, and fuel pump. It had been sitting for about a month because the clutch went out and after i fixed the clutch this started to happen. it has been sitting for about a year now, i do start it up and let it run and move it around, well until it warms up and then i have problems.
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Old 07-19-2006, 14:21   #2 (permalink)
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Re: 1992 Ford Explorer help needed

do you have a check engine light?
if do do a selft test for codes;
EEC-IV Self Test & Connector Location & pics, Bronco & Ford by Ryan M
www.fordfuelinjection.com How To Run a Self-Test
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Old 07-23-2006, 09:08   #3 (permalink)
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Exclamation Re: 1992 Ford Explorer help needed

i have used a code reader but it isn't showing anything to be wrong. i keep getting a code 11 which is system pass. i don't think its a problem with the computer or any sensor. could it be the fuel injectors? that's the only thing i haven't change, and is there a way to see which injector is bad without changing all of them?
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Old 07-24-2006, 12:59   #4 (permalink)
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Re: 1992 Ford Explorer help needed

Before replacing FI's;
ck;
Pulled any plugs? ck for fuel contamination; then ck fuel pressure again; some after market FPR's are crap
Timing; timing retarded too far
orr not advancing properly (worn breaker plate, worn shaft, pin hole in diaphram, crack in hose, etc.)
If temp gauge shows hot; ck coolant; ck system pressure
Vacuum leak
plugged catalytic converter; when engine is hot; see if a header is glowing
The easiest test for converter plugging is done with a vacuum gauge. Connect the gauge to a source of intake vacuum on the intake manifold, carburetor or throttle body. Note the reading at idle, then raise and hold engine speed at 2,500. The needle will drop when you first open the throttle, but should then rise and stabilize. If the vacuum reading starts to drop, pressure may be backing up in the exhaust system
try listening to each injector with a piece of garden hose to se if they all click the same; if one doesn't; ck it's connector for any faults and contacts for corrosion; injectors are costly.
Also look for a pintle crack; as Ric shows and if so, fix it like he did
1992 Ford Bronco When good parts go bad pictures, videos, and sounds | SuperMotors.net

here are typical FI symptoms;
injection problem
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