poco70
New Member
- Joined
- Nov 11, 2015
- Messages
- 5
- Reaction score
- 0
- Points
- 0
- Location
- seattle,wa
- Vehicle Year
- 1995
- Make / Model
- Mazda
- Engine Size
- 2.3L
- Transmission
- Manual
Symptoms:
Tough to start, if it does not fire on the first key turn, I have to hold the pedal to the floor until it starts.
A little hesitation when driving
Symptoms started after replacing the fuel filter and spark plugs and plug wires.
I have a problem of having 5 psi of fuel pressure when the Key is On and the Engine is Off.
When the engine is running, fuel pressure is ~30 psi (range in manual is 25-35 psi). If I had pressure when the engine is off, the pressure should drop by 3-10 psi.
When I remove the vacuum hose from the fuel pressure regulator, the psi increases by 10 psi (manual says it could be between 35-45 psi).
I replaced the fuel filter (had been sitting on my shelf for about 5 years) and had some trouble with the special pressure connector on the engine side of the filter.
I'm thinking the connector springs are sprung and the line is not making a good connection on the filter.
11/24/15 - update
I replaced the fuel filter today with a Motorcraft FG872. I didn't trust the other one and I suspected I had damaged the quick connect when I installed it. So I focused on the connector right away. And yes, I did push in a couple of the tabs in the connector; one almost flat.
Ford uses a quick connect coupling on the engine side of the fuel filter. Inside the connector are four stainless steel tabs. These can become bent during the removal process, bent enough as to not make a good seal when the new filter is connected.
The tabs can be bent back in position, very carefully using a large paper clip with the tip of wire bent into a sharp hook.
When I connected the connector to the filter I heard a distinct snap as it clicked on. I remember, NOT hearing that before. I feel pretty confident that it is fixed.
I was not able to put a pressure gauge on it and could not know by sight that it worked. So far, I've started it a couple of times, without priming with a key on, and it seems like the issue is not resolved.
2017: After driving it for quite awhile priming the pressure before starting I finally gave up on the issue and took it to a mechanic. He noticed a small kick-back and looked at the plug wires. One of the two #1 plug wires was not correctly installed. Anyway the #1 piston was not getting the double spark. It starts as expected now!
He did not have much of an answer to the question, " Why did the fuel pressure gauge read low?" other than he has not had good luck with using the pressure gauges on Fords due to the schrader adapter. Resolved.
Tough to start, if it does not fire on the first key turn, I have to hold the pedal to the floor until it starts.
A little hesitation when driving
Symptoms started after replacing the fuel filter and spark plugs and plug wires.
I have a problem of having 5 psi of fuel pressure when the Key is On and the Engine is Off.
When the engine is running, fuel pressure is ~30 psi (range in manual is 25-35 psi). If I had pressure when the engine is off, the pressure should drop by 3-10 psi.
When I remove the vacuum hose from the fuel pressure regulator, the psi increases by 10 psi (manual says it could be between 35-45 psi).
I replaced the fuel filter (had been sitting on my shelf for about 5 years) and had some trouble with the special pressure connector on the engine side of the filter.
I'm thinking the connector springs are sprung and the line is not making a good connection on the filter.
11/24/15 - update
I replaced the fuel filter today with a Motorcraft FG872. I didn't trust the other one and I suspected I had damaged the quick connect when I installed it. So I focused on the connector right away. And yes, I did push in a couple of the tabs in the connector; one almost flat.
Ford uses a quick connect coupling on the engine side of the fuel filter. Inside the connector are four stainless steel tabs. These can become bent during the removal process, bent enough as to not make a good seal when the new filter is connected.
The tabs can be bent back in position, very carefully using a large paper clip with the tip of wire bent into a sharp hook.
When I connected the connector to the filter I heard a distinct snap as it clicked on. I remember, NOT hearing that before. I feel pretty confident that it is fixed.
I was not able to put a pressure gauge on it and could not know by sight that it worked. So far, I've started it a couple of times, without priming with a key on, and it seems like the issue is not resolved.
2017: After driving it for quite awhile priming the pressure before starting I finally gave up on the issue and took it to a mechanic. He noticed a small kick-back and looked at the plug wires. One of the two #1 plug wires was not correctly installed. Anyway the #1 piston was not getting the double spark. It starts as expected now!
He did not have much of an answer to the question, " Why did the fuel pressure gauge read low?" other than he has not had good luck with using the pressure gauges on Fords due to the schrader adapter. Resolved.
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