3.0 FFV 90 K After putting on remanned heads due to water in the oil, i am only getting 12-14 mpg only 1 code p0174 tried cleaning it (MAF) no change.
It needs to warm up a long time before i can drive or its slower then a turtle, it also has a jerk or a buck around 45 to 55 new wire plugs Double plat tried using a diferent coil which fit my truck no change no ditributor.
How can i check to see if crank and cam are in time, i think i have read not sure timming should be 10 degrees btdc.
need help can't get it to run they way it used too.
I don't think you have a distributor, so you cannot set the timing. If someone else did the head work, I'd be looking to see what they forgot to connect or connected improperly. Do you have a CEL(check engine light) on the dash? Does it idle OK? Does it accelerate from start or is the 'turtle' in the mid-range? A from start hesitation often is the MAF sensor being sluggish or broken. A hesitation while going down the road is often fuel supply. I don't think you can do a thing about spark timing if all the pieces are installed correctly and are functional. A flaky or sluggish EGR could also cause hesitation or trailer-hitching if it failed to close upon command, and the incoming mixture was not proper for combustion.
tom
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as is in first post! (no distributor ) cel on p0174 I did the heads everything was done right, i did not have p0174 prior to the heads only p0304 misfire #4 then i found the anti freeze in the oil.
It runs smooth i can hardly feel it idle at a light it have uuf after it been warmed up bucking or jerk starts about 45 mph. # 4 and 6 got new injectors this buck and jerk was there before i did the heads and i thought it would be gone with the heads replaced the heads were in bad shape the valves were sunk in the head shop said the seat were not hardened.
Can't hurt to try plugging the EGR vacuum line with a golf tee for a test run. If that helps, it may be sluggish in responding to commands. Do not leave it plugged as you will have spark knock that will kill your gas mileage. .. and possibly do some damage.
tom
what does P0174 say? Some EGR valve thingy???
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grrrrrrrrr. well i got the maf from the juck 2 in fact, cleaned maf and disconneted the battery 30 min instead of using the scan tool 45 miles later its back p0174 i missing something here, i will try the egr valve tomorrow.
When i went to ford codes and put in p0174 it lists many things to check one has me puzzled never heard of creature (leaking diaphragm or EVR) or maybe i am not familar with the term EVR? this thing is like a bad virus 171 and 174
I think i fixed the p0174 code,when i went to the junk yard there were 2 maf one without tubular housing and one with, yesterday i took out the security screws (2) and replaced the electronic part only.
Today i replaced all of it after reconnecting the battery i drove with the scanner hooked up no more blinking icons all tests are good and no codes.
You can get the 'lean' code when you are actually NOT lean. The sensor just looks for excess, or available O2 in the exhaust stream. If you have a misfire, you would have un-combusted fuel and the O2 that was not used in the combustion... thus extra O2 .. thus there was not enough fuel to burn up the O2.. So, the codes are subject to human interpretation and knowledge of other things to consider. The parts places will sell you whatever you want to buy, so when reading the codes, you have to consider how they are generated, and what they indicate. Some are obvious, I'll agree, but some take a little pondering before fixing things.
tom
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You also may want to check your ex manifold gaskets. I would also check your valve lash, maybe the valve stems didnt get ground off enough after regrinding the valve seats and faces.
this morning my wife took the truck out and she came back with 2 codes p0304 misfire #4 and p0174 bank 2 lean p0304 is a code i had prior to doing the heads, and its been a 1000 since the heads were done.
Fustrated i am i decided 3 maf are not going to do the same thing, so i pulled all the new plugs to read them #1,2,3 were fine off white but the was set 45 now there @ 50 #4,5 were wet of gas gaps @50 #6 was fine but gapped @ 30 replace #4,5 wires regapped all plugs @ 42 so if the gap does open it wont go beyond 46 atleast that is what i am hoping for. it does feel better it seems to repond to my foot better and wait and see if my mpg go up, trying to do this in small steps so when i finally get I will know what itis.
The outher tought was temp sending unit only because of i never had to warm it up so much to drive, the exhaust manifold gasket is new and so are the bolts. i will keep u informed.thx all Fred well see what tomarrow brings.
How old is the thermostat? You did put it back in when you reassembled the engine, right? If you left that out, your mileage would suffer and the engine would take longer to run correctly.
tom
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YES! its on the front of the lower intake, 99 3.0 felx fuel and the sending unit is to the right of it.upper rad hose right to it, and 2 lines come off the heater hose to the top of the upper intake.
