xr3i running problem
Discussion
Can you be a little more precise on the age of the car?
There were 2 fuel systems used on the 86-90 escort xr3i
The early system was a mechanical injection system, where by the air flow across a plate regulated the fuel flow.
There are many possibles for a non start as you describe on this system ranging from crud on the plate causing it to stick, or just poor injectors allwoing too much fuel in. Not to mention a failure of the thermo/time switch and cold start injectors.....these may not be turning off and flooding it.
The later system has EFI all over it, and these are a little more complicated.
If you could post back with the age and type of system and as much detail as possible.
uneven idle before stalling
excessive smoke
can the fuel pump be heard running
There were 2 fuel systems used on the 86-90 escort xr3i
The early system was a mechanical injection system, where by the air flow across a plate regulated the fuel flow.
There are many possibles for a non start as you describe on this system ranging from crud on the plate causing it to stick, or just poor injectors allwoing too much fuel in. Not to mention a failure of the thermo/time switch and cold start injectors.....these may not be turning off and flooding it.
The later system has EFI all over it, and these are a little more complicated.
If you could post back with the age and type of system and as much detail as possible.
uneven idle before stalling
excessive smoke
can the fuel pump be heard running
there is a bit on the dizzy that has a black oblong plug going on to it (technical stuff,eh) which have a tendency to go tits-up at any time and can cause starting problems like you stated,my brother-in-law had his one changed and it cost about £40 iirc.
also i used to have a starting problem with my old mk4 xr3i,i found out from a ford mechanic that the fuel pump relays are a regular failing point (the pink 'benzinepump' relays) there is one in the fusebox and another under the drivers side dash (behind the shelf near where the pedels are)....it may be worth having a look at them to see if there is any melted bits on the plastic or even if it smells like a burned out radio.
when the relays start to play up its an intermittant problem that happens anytime,not nessesarilly when the car is hot or cold. when one of the relays goes it usually shags the other relay out aswell.
the relays were about £18 each from fords iirc.
sorry i cant be more helpfull.
>> Edited by cortinaman on Friday 8th April 04:35
also i used to have a starting problem with my old mk4 xr3i,i found out from a ford mechanic that the fuel pump relays are a regular failing point (the pink 'benzinepump' relays) there is one in the fusebox and another under the drivers side dash (behind the shelf near where the pedels are)....it may be worth having a look at them to see if there is any melted bits on the plastic or even if it smells like a burned out radio.
when the relays start to play up its an intermittant problem that happens anytime,not nessesarilly when the car is hot or cold. when one of the relays goes it usually shags the other relay out aswell.
the relays were about £18 each from fords iirc.
sorry i cant be more helpfull.
>> Edited by cortinaman on Friday 8th April 04:35
The pump relay and the power hold relays on the earlier systems were indeed a common point of failure.
The oblong bit is the ignition amplifier, some nasty grease on the back of that if it's never been off before !!
!! it contained viton and has long since been replaced. They used to cause some rather strange running concerns.
The oblong bit is the ignition amplifier, some nasty grease on the back of that if it's never been off before !!
!! it contained viton and has long since been replaced. They used to cause some rather strange running concerns.Gassing Station | Ford | Top of Page | What's New | My Stuff