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Valve/engine woes. Should I call it a day?



  • tbird69tbird69 Posts: 11
    Who chose the engine? .. well there in lies the misunderstanding ... my mechanic couldn't find an engine so I called around .. junkyard said we got twin cam and we got single cam ... I didn't know which so I asked mechanic what I had , he said single but that he would go do a compression check on engine and check it out ... nice guy actually ... the Forester the engine was in looked exactly the same as mine .. engine was good, he said go for it ... but it was the DOHC ... which were in Foresters in '99 ...

    His side is that I picked out the engine and he went to check it out as a favor and that I didn't do my homework .... I'm trying to keep this from becoming a finger pointing contest ... the junkyard has a very good reputation so I'm hoping they will be simpathetic .. the reality is the engine doesn't fit ... am I in Fantasyland thinking they will take it back?
  • xwesxxwesx Fairbanks, AlaskaPosts: 11,152
    Well, if they have SOHC engines, maybe they will take the DOHC back in exchange for a SOHC (if nothing else).
    2014 Audi Q7 TDI, 2008 and 2013 Subaru Forester(s), 1969 Chevrolet C20 Pickup, 1969 Ford Econoline 100, 1976 Ford F250 Pickup
  • tbird69tbird69 Posts: 11
    The good news is they have a SOHC engine and are willing to do the exchange!!! I'm going to cross reference the engine number first to make sure it will work ... wikipedia has a site I found where I can decode the serial numbers ... the yard I'm working with is called "Just [non-permissible content removed]" ... I had heard they were good to deal with , now I know it;'s true .. Craig, the owner has been great to work with ... and my shop guy and I have learned alot about Subaru in the last 2 weeks ....

    Thank you guys for all your help!!! I'll let you know how it works out

    Be Well .. Peace
  • xwesxxwesx Fairbanks, AlaskaPosts: 11,152
    Sounds great! Best of luck to you both....
    2014 Audi Q7 TDI, 2008 and 2013 Subaru Forester(s), 1969 Chevrolet C20 Pickup, 1969 Ford Econoline 100, 1976 Ford F250 Pickup
  • tbird69tbird69 Posts: 11
    Thanx ... my concern now is that the SOHC engine is from a 2001 Impreza ... which I looked up online ... it's Intake volume is regulated by the use of a MAP sensor, unlike the EJ253 (which I had) which uses a MAF sensor. If I understand your previous post, as long as I get a SOHC "long block" use my intake manifold I should be golden ... does the sensor become a mute point then?

    It ain't over yet ....
  • xwesxxwesx Fairbanks, AlaskaPosts: 11,152
    If the mechanical portions of the engine are identical (crankshaft/pistons, camshaft, etc) and the ports match up to the parts you have, if you install all of your own components on the engine block including sensors, you should have no problems as a result of sensor/computer incompatibility. If something is different, your woes are likely to continue.

    If the replacement engine is not overhauled, be sure to check for head gasket problems before you install it! No reason to move from one headache to another.... or tear the engine out of the car yet again!
    2014 Audi Q7 TDI, 2008 and 2013 Subaru Forester(s), 1969 Chevrolet C20 Pickup, 1969 Ford Econoline 100, 1976 Ford F250 Pickup
  • tbird69tbird69 Posts: 11
    Thanx .. I'll keep ya posted ... Peace,
  • tbird69tbird69 Posts: 11
    so here's the new twist ... was ably to switch engines at junkyard... it's installed ... now we get the AT Oil Temp light flashing and check engine light on .. plus tranny is stuck in one gear ... the code is 1705 , at least that's what they told me ....2 other points ....

    mechanic didn't use my intake manifold, the one on the junkyard engine connected all but on sensor on intake ... mmmmm a clue perhaps .... I was also wondering if that AT oil screen needed to be changed .... years ago I remember that being a simple fix when you thought you had major problems ... any thoughts!!!
    Thanx!! been 5 weeks without car now .. good thing I use a bicycle alot :)
  • xwesxxwesx Fairbanks, AlaskaPosts: 11,152
    Why did he not use your intake? That could very well be the source of problem, at least on the P1705 code.

    Here is information on that, located at this website.

    P1705 excessively high or low voltage input from TPS sensor

    When testing a tps sensor code like this P1705 code, check the signal wire voltage for any signs of glitch. This can be done manually without running the engine. With key on engine off, monitor the signal wire voltage from idle (close throttle) and up to high idle (WOT or wide open throttle position) by moving the throttle linkage. The transistion from idle to high idle should be reflected in the voltage readings like a gradually increasing pattern. If there is a sudden change or a glitch, replace the TPS sensor. Please note also that a regular tps sensor usually has 3 wires: a voltage reference wire, a signal wire and a ground wire. Except the signal wires, the other 2 wires should have steady voltage readings regardless of the throttle linkage position.

    For advance testing, garages can usually monitor the voltage of the TPS signal wire while the engine is running. Using a special scanner, the voltage can be watched while cruising in order to see if the value of the signal wire voltage will change. This is particularly important if the code P1705 only appears intermittently. For precaution, check the integrity of the signal wires from the TPS sensor plug-in up to 12 inches away. To do this, splice the wiring harness and check if there is any short (bump) in the signal wire which could be rubbing metal before this code came on.

    With regard to the AT Oil Temp light and non-shifting, I wonder if there is a connector not properly seated on the transmission - it sounds to me like the engine control module and transmission control module are not talking! They have to talk if you want the tranny to shift out of 1st. By default, it will work in P, R, N, and 1 without input from the engine control module, but that unit tells it when/if to up or down shift through the other forward gears.
    2014 Audi Q7 TDI, 2008 and 2013 Subaru Forester(s), 1969 Chevrolet C20 Pickup, 1969 Ford Econoline 100, 1976 Ford F250 Pickup
  • I am having this same problem on a brand new 2011 subaru forester. The check engine came on the night I drove it off the lot and has come on 6 times in the 3 weeks that I've had it. It is engine misfire trouble codes P0302 and P0304. They don't know how to fix it. I sent in my lemon law letter and I am trying to get them to replace the car with another one.
  • I am having the same issues with the check engine lights due to misfires as well as numerous transmission issues with no codes showing problems. I am now requesting a repurchase.
  • I have a 2011 Forester auto and traveling up hill it surges and shakes before downshifting. It also feels like it slips into neutral before hitting the lower gear really hard at low speed city driving. The computer is not showing any problems with lights or codes about the transmission and the dealer has had it 6 times attempting to resolve this issue with no luck. I say LEMON!
  • deequedeeque Posts: 2
    My less than 1 year Forester has been in 4 times for misfires. Each time, the dealership tells me it is for a different reason.
    The Lemon law in California states that if it is brought in for four times for the SAME thing.
    I have secured an attorney to deal with Subaru.
  • subie7ownersubie7owner Posts: 1
    edited December 2014
    Thank everyone on this forum so much!--Subaru took care of me! I just had bent valve/damaged cylinder head/engine issue with a low mileage (43K) 2007 Subaru Forester, out of warranty due to being more than 7 years old. Based on the discussion in this forum, I knew what questions to ask, including whether Subaru could be contacted to help out. After sending the parts to the machine shop and identifying the relevant issues --two bent valves, damaged cylinder heads and some related engine issues, but timing belt OK--the service manager at my dealer called Subaru to discuss. Subaru paid for the engine work. I paid for new timing belt, since that service would be due soon and I would save labor costs by doing it now since engine was already open. NOTE: My circumstances were somewhat unusual since (1) there had never been any engine warnings or unusual sounds, the car simply wouldn't start one day (the tow truck driver correctly surmised that it wasn't the starter or fuel pump, but thought it might be the timing belt), (2) the dealer's mechanic hadn't come across anything like this before without there having been some triggering event (like a timing belt slipping), and (3) I had always taken my car to the same Subaru dealer regularly for service and they had a complete service record for my vehicle. I am very pleased that Subaru took care of me, and it was the right thing to do since this shows that Subaru stands by its product.
  • acurapriceacuraprice Posts: 91
    I drive a 2014 Forester 2.5i Premium with Boxer engine. I have 37,000 miles and get jerking/misfire at low speeds on take off. Had it in shop 3 times and nobody can find anything wrong. They checked fuel filter, and reset the software for shifting/timing issues - problem still happens periodically and regularly. Additionally I have had on 2 separate occasions (almost a year apart) a strong natural gas smell coming from the A/C ventilation system. Thought in all seriousness on both occasions I was driving through a part of town that was working on a major gas line repair - then it dawned on me it was my car....very scary situation! Subaru service knew nothing! Called 4 different dealerships and nobody ever heard of anything like this.

    Then last week I hear that Subaru and a few other car mfgs have been cited for engines that burn oil, and NTSA has recommended they pay owners for related engine problems.

    Thinking I should have bought a Honda!
  • acurapriceacuraprice Posts: 91
    For folks from the Honda blog, I drive the Forester, and my daughter has the 2014 CRV EX-L we're going to flip so she can stay in something new.
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