Plymouth Voyager Repair Question
Hard to cold start
A front wheel drive 3.0 L V6 with Automatic overdrive transmision. It has 170, 000 Km or just over 100, 000 miles (original).
1 - it sat for about 5 years
2 - in 2002, it was started and ran well for until last year
3 - in 2005, the A/C compressor seized on us, no more A/C
4 - in summer 2006, the fuel pump went and replaced, along with the inline filter by the chasis
5 - in late 2006, cold starting is started to be a challenge until now it just juggles and dies. Now it sat in the garage. When it starts, it would run fine when it is warm.
6 - 3 experienced mechanics tried to solve this problem with no answer
7 - sympstoms: starts & putt-putt-putt & dies with NO ENGINE CODES!
8 - things that has been replaced - distributor cap, rotor, whole distributor, water temp sensor, all spark plugs, all ignition wires, air filter, pvc valve filter, engine computer (twice)
9 - things has been checked - no engine code, fuel pressure at 45
Could the fuel flow be questionable even the pressure checked out good?
I am thinking of changing the fuel pump. Would this be worth a try? The other mechanics think not.
I've spent quite a bit of money and time. I asked another mechanic for his opnions and he jokingly tld me that there is one thing that I haven't changed. I asked what it is. He said the Van itself.
Do you have any idea?
I would recheck the fuel pressure again and pull the vacuum hose at the pressure regulator you see fuel in it -bad regulator.
Do the pressure check KOEO and KOER
Where would I find the fuel regulator? Can you describe the look or approximate location?
If you have a picture that would be handy. Thx.
A 2.5 has TBI- yours must be a MFPI system find the fuel rail its attached to it. or the fuel line follow it will lead you to it. It looks likes a small canister with a vacuum hose.
OK, I will look into it this week. Thx!
I replaced the fuel pump, filter and pressure regulator.
The car now starts but still a rough start.
It takes a few starts before it gets going. That's with my foot to the floor.
I also noticed the Automatic Transmission Fluid is low. I put in 2 liters and still need more.
Could this fluid leak into the engine and cause this starting problem?
Where should I go next?
Test the coolant temperature sensor/idle air control motor and throttle position sensor.
I've changed the following:
- Coolant temp sensor
- Distributor assmebly
- Cap & rotor
- Ignition wire set
- All spark plugs
- Air filter
- PVC filter
- Fuel pump
- Fuel filter
- Fuel pressure regulator
What do the Idle air control motor and throttle position sensor look like and where are they located?
Idle air control motor and the throttle position sensor-See below
Thanks for the picture!
What kind of testing should I do?
You can perform all 3 of them.