Note the Solenoid B is spring loaded with a very mild spring. With the oil pan off, you can remove a solenoid in 10 seconds - pull down/out retaining clip and pull out (sideways) solenoid. (Make sure they are disconnected from the trans harness before testing!) If you really wanted to, you could jumper 12V and ground to them to ensure they "snap" and move their plunger. Instead drop the trans oil pan and simply disconnect the solenoids and test them with an ohm meter. If you apply ground or +12 to the wrong wire, you could fry the ECM (computer). While you could try to "poke" into the wiring to diagnose the solenoid, I wouldn't recommend it. P0751 indicates that the transmission is shifting unexpectedly from 1 to 4 and that a likely cause is Solenoid A. TL DR- My car is skipping 2nd gear altogether and not throwing any codes.OK. This seems pretty expensive to me, what do you guys think? Once the mechanic came back with my car and told me this, he started "explaining" things and saying he usually overhauls these transmissions for $1800. This shop cleared everything up for me, the engine wasn't throwing any codes but when he took it for a ride with the scanner, the ecu would call for 2nd but would never actually shift into it, this results in my car revving into the 4500 rpm range normally and shifting late into 3rd (very slowly), 4th gear is fine. While just driving normally in town the car just takes forever to upshift into what I thought was second gear. As of late, my car has been very slow off the line, WOT from a stop and the car will not shift at all, it just stays redlining in first. I drive a 2002 Pontiac Firebird WS6 w/ AT (unfortunately) with 136000 miles on it and I went to a transmission shop today to get a problem diagnosed. By actively helping the moderators with this you ensure that the r/Cartalk community continues to be a worthwhile and knowledgeable resource for car repairs. Report posts and comments that fall outside the guidelines. If you do not take the time to include this basic information your post may be removed until it is revised. By making a good attempt to narrow down where and what may be causing the problem you save those trying to help many steps in diagnosing the problem.** Be sure to also include the year, make, model and engine size of you car in your title, along with your main issue.** For example "2003 Ford Crown Victoria 4.6L exhaust manifold bolts rusted off" would be an acceptable post title. Take pictures, crawl under the car, look under the hood. Attempt to investigate the repair issue on your own. Have as much information as you can about the issue before posting. If you still aren't sure about something you are about to post, please look at the links down below for other subreddits that might be better suited for your question, or message the moderators.* Most repairs have already been covered multiple times somewhere in great depth that will satisfy your needs. ![]() * Remember that posting here is not a substitute for using Google. Some examples of things that are NOT GENERALLY ALLOWED: links to articles or videos that are for profit, professional-level body work repairs, detailing or cleaning questions, aftermarket car stereo questions ( /r/CarAV), car reviews ( r/Cars), new & used vehicle recommendations, price comparisons for tires, stereos, exhaust, etc, and especially questions regarding cost of repairs or the legitimacy of a mechanic's quote. It will let you read and reset the codes. You can get a code reader from Amazon that works with 1996 and up vehicles for about $15. They will have a letter followed by four numbers, for example "P1234". You can have codes read at Auto Zone, Pep Boys, O'Reilly's, etc., for free in most states. Get OBD codes! If you have a Check Engine (CEL) or Service Engine (SEL) Soon light on, get the codes read and have them available if possible befoer posting. We're here to help you, but not to assist in negotiating with mechanics (this is business/life advice, not repair advice) or to tell you what car you should buy. Also respect those that take the time to answer questions and remember that many are professional mechanics, who normally get paid very well to diagnose automotive repairs. Treat those asking for help with respect, and answer without bias toward them, their situation, or their knowledge (or lack thereof) about the repair issues. ![]() Post disappeared? Read the following guidelines, and if you think it still is relevant, message the mods to free it from the spam filter. We look forward to helping everyone with their car repairs and questions, but please take the time to read this sidebar. R/Cartalk is the original Reddit auto repair community, with over 650,000 subscribers and growing.
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