Ford Ranger / B-Series :: 1998 4.0L Cranks But No Start / High Fuel Pressure
Aug 24, 2014
Made a trip to the hardware store yesterday. When I came out, the truck would crank just fine, but wouldn't start (98 4.0L 4x4). Tried adding gas, no luck. I had actually called a wrecker, but it eventually started after sitting for about an hour. All I did differently was hit the gas pedal a couple of times. Thinking it may be a low fuel pressure problem, I took it to autozone this morning (started it about 4 times now with no problems). Checked the fuel pressure, and it sat at a solid 65 lbs at idle. I tried holding the throttle open and it stayed at the same pressure. I forgot to try with the vacuum off.
First off, I've seen some people say 60 lbs is right, but more say it should be at about 45lbs. 45 seems right since the fuel return is on the block, not on the pump. I'm guessing the fuel damper went out, but is there any good way to check it? Also, since the damper is vacuum controlled, would a bad vacuum cause this problem? Third, could high fuel pressure cause it to not start? That's the one I'm most worried about what was wrong there.
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I've got 30 lbs of fuel pressure that drops to 28 if you rev it up a bit on a 1998 ranger 4.0 with a new fuel filter. Haynes manual say it should be 56-72 lbs. Bad news is fuel pressure regulator is in the tanks with the pump. Can the regulator be swapped out or is it one assembly with the fuel pump? Is there anything I should check first?
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Ok so my dad has been using my 98 while I was fixing his 92 4.0. I had the 92 perfect and then someone pulled in front of me and totaled it out. Well now I got my 98 back and it's all messed up. Check engine is on p0171. Fuel pressure test done and it's steady 40-42 psi. I remember last year I checked it was like 68-72 psi. It hasn't been a year or two since fuel pump and strainer were replaced. Filter probably 15,000 miles ago. It's currently running good sometimes it cuts off when you start it then next time it stays running. Is this another fuel pump failure? How much longer will it last on 40 psi? The fuel lines and tank have 336,000 miles, engine maybe 150,000 and injectors have about 20,000 miles on them.
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I have a 2009 Ranger 2.3 L manual with about 100000 miles. The engine was bogging down and I just found out that the MAF sensor is bad from testing it. In the process, I measured my fuel pressure to be 73 psi (manual says 60-65 psi). So I have two questions:
a.) Is there any chance of just cleaning the MAF sensor. The sensor has zero volts when running and warm (or .02 v) and barely changes when reving the throttle.
b.) Perhaps then the high fuel pressure is an unrelated issue. Is this so high that I must change the regulator as I have to change the pump as well? Might it be some other issue than the regulator which is what the Hayness manual says?
One theory I had for the high fuel pressure is that the bad MAF was leading to bogging and lean conditions and the computer was running the pump more to compensate but I think the computer might run the pump based on fuel pressure not the o2 sensor.
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I have a 95 Ranger 2.3 with a manual tranny. In the past I have had problems with this truck not starting do to a bad inertia switch and numerous fuel pumps. A couple of weeks ago I pulled the truck off of the driveway into the street and let it set there for a few hours. When I went to put it back on the driveway it would not start. I got it pushed on the side of the garage. I did my normal routine of doing a pressure check. I had no fuel pressure so I assumed that it was the fuel pump (as usual) so I dropped the tank and changed the pump.
I got it back together and it still wouldn't start. I checked the fuel pressure and the manifold still had 0. So I started my diagnostic. I have power from the fuse to the fuel pump relay. I then checked the wiring at the inertia switch and found that there is no voltage with the key on at the supply side of the inertia wiring. I verified continuity between power distribution block and the inertia switch. I put in a new fuel pump relay and it still has no fuel rail pressure and there still is no electric signal at the inertia switch. Where to go from here?
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2001 Ranger, 108,000 miles, good regular maintenance per the Ford Schedule. 4.0L manual trans.
I changed the fuel filter 20,000 miles ago. This has been a recurring issue anytime my fuel level was low, about 1/4 tank or less, and when the truck was warmed up, hot. The fix in the past was to add fuel and let the truck sit for awhile. Now, today I drove home for lunch and when I tried to start the truck to return to work, it wouldn't start.
Same conditions, low fuel level and it was warmed up. The engine will turn over and start to run with ether in the air box, so it's definitely fuel related. A fuel pressure gauge on the Schrader valve got a zero reading, not even a flicker, and no residual pressure after shut off.
Could this be only a fuel pressure regulator issue? Or should I prepare to replace the fuel pump? Is there a fuse that might be blown?
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Sons 94 ranger 4.0 4x4 Auto 185k got him to work yesterday but would not start to bring him home. No spark, checked with timing light, and no fuel pressure. Searched and read alot of tips from Pawpaw so I tried a few things with no luck. Swapped the relays around, inspected coil pack and plugs. CEL was not on and goes out while cranking. I have a OBD scan tool but this truck must be too old or I need finding plug. Crank sensor maybe?
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My father in law has a 98 4wd, 4.0L that cranks but doesn't fire. We pulled a plug to check for spark....no spark. Possibly coil pack, or crank position sensor?
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I have a 1990 Ranger with a 4.0L that I just changer the intake gasket on. I broke the fuel line at the Fuel Pressure Regulator. Cant seem to find one anywhere. It is a nylon inside/rubber outside with a cloth mesh and quick connect fitting line. Where to get one? Can I hose clamp it the FPR by cutting off the connector that broke?
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I have heard from a few people that it might be the computer that is messed up. Just replaced cap and rotor, spark plugs, wires, fuel filters. Pump turns on. Cranks and cranks but won't start. Took the intake cover off and tried starting it, all it did was back fire. Checked the firing order and everything is right. So im left with guessing at the computer and ignition??
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Ok, went out last night to go over to a buddies place to watch some football. Tried to start my truck but all that happened is that it would turn over, but not start. Had plenty of juice in the battery, and 1/2 tank of gas. It acted like it wanted to start, but nothing doing - just keeps cranking and cranking. Its even more frustrating because I was driving it around most of the day before this happened.
Here's the dillema: Its been doing this for the past two months now on and off. Once I fix something, it runs for about a month, and then it starts doing this again, without any warning signs (i.e. multiple cranks before a start, stalling, hesitation on accel., etc.). At this point I'm clueless. I've replaced the fuel filter, fuel pump, and air filter, but the problem has resurfaced again.
An interesting thing to note is that the only ways I'm able to get it started when it starts doing this is to remove the electrical connection from the intertia switch, and crank the engine a few times to relieve the fuel system pressure. After reconnecting the inertia switch, the truck starts instantly.
So whats the deal? Why this would work, and why suddenly the thing would not start after weeks and weeks of driving flawlessly? Is it possible that my system is either too pressurized or losing pressure somehow, and that is how it be able to start? A buddy suggested it might be injectors, but I'm not so sure, because there is no hesitation on accel or performance loss, or even a rough idle.
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My 1999 Ranger that I bought used has been serving me well. However, two days ago I went to visit a friend and when I tried to start the truck to go home, the engine cranked but would not fire. I assumed that perhaps I had flooded the engine, so I walked home. I went back an hour later and the truck started up immediately. Then, yesterday, the truck would not fire at all. I towed it to AutoZone to check for error codes, but none were found. I put my inductive timing light on a plug wire and found that there was no spark.
In one instance of cranking, the timing light blinked and the engine tried to fire, but then nothing. The AutoZone man suggested changing the crankshaft and camshaft sensors. I haven't done that yet, but that is my next plan. Can the Ford dealer find error codes that tell what is preventing an engine from starting that AutoZone can't see? For sure there is no spark, but maybe there is no fuel either since I don't smell gas after much cranking. Could it be the inertia switch cutting off both fuel and spark?
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I have a 94 ranger 5 speed xlt v6 4.0l 288k miles original engine. in the last month the oil pressure has gradually gone way up. a manual gauge shows 65psi at cold start ( in the 90* out side) after a minute of idle it dropped to 60psi, at 2k rpms the psi was 85+. also the water temp has gotten hotter to the point of almost being unsafe. it appears that in the hotter part of the day the psi goes higher. the oil and filter was changed 1200 miles ago. the cooling system has been update in the last year with a new radiator new thermostat. no cross contamination in the fluids, engine runs good other than gauges on dash showing water and oil getting close to unsafe range and manual gauge showing high pressure.
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My kid is using my 94 Ranger with 215,000 miles. It quit while he was on his way to work. Engine cranks but won't start.
Fuel pressure at rail was 12 psi (Key on eng. off). I replaced fuel pump. Pressure at rail up to 20 psi. Still cranks, no start.
I replaced fuel filter. Pressure at rail up to 30 psi. Still cranks, no start.
Replaced distributor cap/rotor and plugs. I have spark at plugs.
Chiltons from 1994 doesn't list a rail fuel pressure. I see new fuel pressure regulators are set at 41 psi. I pulled mine and hooked air to it. It (FPR) cracks at 37 psi. I have lots of flow returning to tank, so I assume the fuel system is working correctly. I've never replaced the timing chain/sprockets. Distributor rotor spins during engine cranking. When I rotate the crank pulley to 0 Top Dead Center the rotor is pointing to #1 on the distributor, so I don't think the timing chain has skipped a tooth on the sprocket??????
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2004 3.0L Ranger Edge, 88,000 miles on it, I am the original owner. It won't start. It cranks strongly. Usually when this happens, I have to reset the fuel pump inertia switch. This time, resetting the switch does not work. I disconnected the switch and jumped the two wires going to it, but still no start. The switch seems to work ok, in that I can reset it (a ball, spring, and magnet mechanism, I think), then shake it and the ball will come loose.
The fuel pump 20A fuse in the engine compartment is good. The fuel pump relay in the engine compartment is good (I switched it out with an identical relay that runs the fog lights without problem). I am getting spark. I don't have a fuel pressure gauge but pressing in the Schraeder valve on the fuel rail produces gas.
Usually, when the inertia switch is tripped I can get the engine to briefly start by using starter fluid in the air intake. But not this time. I do not hear the fuel pump kicking in when I turn the ignition key to the "On" position, and that would lead me to think that the pump is bad. Except, I don't get a brief start using starter fluid. The fuel filter has never been changed, but again, since I get no start with starter fluid, I don't see how that could be the problem. OBDII scan shows no codes.
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working on a 84 ranger it did run fine for 3 wks then while driving there was a thump and it stopped and wouldn't start. Now working on it has spark cranks but won't start. while trying to start when I let off the key it tries to catch but only at that time not when the key is turn to start normal. we poured fuel into the carb and it still didn't start. Leaning toward compression maybe?
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The turn signals and high beams do not work on my 1998 ford ranger xlt 4x4. I have replaced the multi function switch, the yellow flasher relay checked all fusses and all are good. What could be the problem?
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I am losing residual fuel pressure on my 1996 ranger 2wd, 3.0, V6. Acts fuel starved after sitting for awhile, cranks ok turn key off starts up, sometimes i have to do this twice.
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I have a 2000 Ranger with the 3.0. Was wondering where the fuel pressure regulator is located on it. I like pictures.
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2007 Ranger 4.0.... Initial start of the day it cranks a bit longer than it should. After warm, it starts fine.
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Removing fuel injectors-coolant contamination.. How is this done? I need to see if they are any good-or clean/replace them-after I accidentally left the clip off the hose running out of the thermostat housing when I drained my coolant last week and the first time I drove, coolant leaked onto the top of the engine/manifold depressions, getting onto and into the fuel injectors.
I tried to clean it up as much as possible the first time(finally got it going) but still a few days later the truck at times cranks but does not start-hot or cold. I assume my idiocy is the cause or maybe it is just coincidence of something else? From what I read from my symptoms it could also be the fuel pump relay, pressure regulator, coolant temp sensor, crank sensor.. among other things. My fuel pump is 1.5 years old, so hopefully that isnt it. Have the injectors possibly been contaminated to where I should just replace them?
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