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i have no gasket at all behind my egr valve. also, shouldn't i get some kind of response from the engine if i remove the vac line from the egr valve? it did not matter if the engine was at idle or a rev..when i removed the line nothing happened

nice...ill take a look at that. you are awesome

10-4 ill see if i can get my hands on one

is that different than the freeze frame info that i get on my code reader??

ok..brand new (motocraft plat) plugs and a fuel filter installed yesterday. this morning, the truck fired right up, but idled a little rough for about the first 10 seconds then cleared up and is running fine. i am basically back to square one. i do not have any codes right now, but if...

cool temp sensor. thats a new issue, is there a link that addresses this?

well i put everything back together after testing. it actually has fired right up several times, but i have a miss(presumably from what ever has been causing all my codes) i am going to replace the plugs again tomorrow and see what happens. could the fuel pump still be causing me problems...

ok i stand corrected i think. that is not return line, that is a feed line

mine is the push rod type. the regulator with the return hose is mounted on the side of the rail. the haynes manual says max pressure of 65 but idle pressure 30-45

ok...i am getting a fuel pressure reading of 60 psi with vacuum attached.. according to the book, i should be at 30-45 psi. i am going to replace the regulator today as i cannot really tell if i have a blockage in my fuel return. i will also check the vacuum pressure once i re-install the...

i changed the filter a while back with no change. i will change it again if i do the fuel pump. it could probably use a fuel pump with this many miles anyway.....ill get around to that soon. ill be in touch. i have not looked it up yet, but is it a pain in the butt?

ok all....still having rough starts but after 10 seconds or so it runs smooth as can be,. i currently do not have any codes since a reset the comp on the 12th. find... i have not checked fuel pressure yet, but if it were low, wouldn't i have problems with gas mileage and driveability? i...

it was 303...i couldnt remember what the code was when i posted anyway...i replaced the #3 plug and nothing changed. i replaced the number 4 plug and now i am running on all cylinders again. This morning, the truck fired right up. this afternoon, it struggled somewhat but it started...

i pulled and replaced number three plug. it looked fine and the new plug did not change a thing. This truck is to the point now, that it barely starts. it seems the fuel injector cleaner made it worse. i hate using additives and have no idea why i decided to use it this time...

the engine light finally came back on. i dont have the codes in front of me but this is what i remember 171 /174 bank 1 and bank 2 (too lean i think) and 301 ??( cyl 3 misfire detected) this code is new. the first two have been there for years. i did run some lucas fuel injector cleaner...

ok...i reset the computer and i am waiting for the engine light to come back on. however, it is still having a hard time with cold starts. warm/hot starts are perfect. when it does fire on cold starts, it feels like the motor is going to fall out.

ill run the codes tomorrow and then reset the computer..stay tuned

bad problems starting..please help(update) alright guys and gals....i have a 99 explore 4.0L i have been running an engine code for over year now that points to map sensor and 02 sensor, but i have never really had any issues with the truck running. it has always gotten around 16 mpg and...

i have a 99 explorer. right after i start it up, i good 5 sets of 5 chimes. this sometimes happens randomly after the truck has been running. anyone have any idea what this is? my truck is currently throwing code that is pointing towards the map sensor and o2 sensor, but this code...

i have un plugged and plugged them back in. they do no look to be dirty or corroded.

i have searched the forums and cannot find any reference to code 36. i am going to mess with the plugs under the seat...but can anyone tell me anything about this code?

i have a 91 navajo with a good low mile motor. I would like to put that engine in my 99 explore. the 99 is a sohc and the 91 is not. can this be done without causing a huge problem?