# Car Stalls When Trying To Pass **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** corolla, toyota\ **Created:** [November 5, 2023, 8:30pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728 "2023-11-05T20:30:33Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![bkelley502\_187614](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bkelley502_187614/32/36924_2.png) [@bkelley502\_187614](https://community.cartalk.com/u/bkelley502_187614)\ **Post date:** [November 8, 2023, 10:28pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/21 "2023-11-08T22:28:09Z")
> [@TheWonderful90s](#): > > I’ve heard putting the timing belt on off one notch is a common mistake. The result is usually poor gas milage and performance and nobody knows why. That’s something I hope the Toyota folks can tell me without having to tear apart the engine. > [@TheWonderful90s](#): > > Have you tried putting it is 2nd gear to get the engine up near 5000 RPM and then increasing the throttle to see when it starts to misfire? Does it happen immediately? Does it misfire but start to get better if you hold the throttle in the same place? Do you overall have less power when in 2nd gear? That could be a fuel starvation issue. The other day I tried something like that, but I didn’t put in 2nd. I just revved the engine, and yes, it will misfire after a few moments. > [@TheWonderful90s](#): > > MAP, TPS, EGR I think I know where the MAP is, but not the other items. I could check to see if they were plugged in if I knew where they were. ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [November 8, 2023, 10:40pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/22 "2023-11-08T22:40:21Z")
If you know where the intake manifold is located, there should a fairly thick hose from that directly to the MAP sensor. On my Corolla it is fairly high up & near the rear of the engine compartment. The tps sensor is going to be near to the throttle valve , the area where the intake air is routed from the engine air filter ass’y. The EGR system may be hard to see. On transverse-oriented engines (like yours) the EGR valve is usually bolted to the engine, wedged between the engine and the firewall. The intake manifold is probably in the way. There will a vacuum hose between the EGR valve and the EGR vacuum modulator, and another going to the vacuum switching valve. Rock Auto will show you what those parts look like. Suggest however this problem is best solved by a pro-shop, dealership or independent. Not a good project for a newbie diy’er. The pro shop will have diagnostic tools you just don’t have. ---
**Author:** ![bkelley502\_187614](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bkelley502_187614/32/36924_2.png) [@bkelley502\_187614](https://community.cartalk.com/u/bkelley502_187614)\ **Post date:** [November 8, 2023, 10:51pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/23 "2023-11-08T22:51:43Z")
> [@George\_San\_Jose1](#): > > Suggest however this problem is best solved by a pro-shop, dealership or independent. Not a good project for a newbie diy’er. The pro shop will have diagnostic tools you just don’t have. Roger that! 🤣 Trust me, I know where my expertise lies and it’s NOT with automobile mechanics anymore. That’s why I got an appt with the local Toyota dealership next week. But I also like to research these kinds of things so I can be somewhat knowledgeable about the ins and outs of my car. That’s why I posted this topic here, and let me say, **I am extremely thankful for folks like yourself taking time out of your day to help me.** Now, that said, I knew my 1973 Nova inside and out and could work on it in my sleep, but that was about, oh, 41 years ago? 😁 ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [November 8, 2023, 11:05pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/24 "2023-11-08T23:05:22Z")
> [@bkelley502\_187614](#): > > , I knew my 1973 Nova inside and out and could work on it in my sleep lol … reminds me, a couple years ago my similar vintage Ford truck stalled and wouldn’t start in a home-improvement store parking lot. I purchased the hand tools I needed to do the diagnosis from the home-store, and got it running again in about 90 minutes and $25 …🙂 ---
**Author:** ![bkelley502\_187614](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bkelley502_187614/32/36924_2.png) [@bkelley502\_187614](https://community.cartalk.com/u/bkelley502_187614)\ **Post date:** [November 8, 2023, 11:32pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/25 "2023-11-08T23:32:38Z")
> [@George\_San\_Jose1](#): > > lol … reminds me, a couple years ago my similar vintage Ford truck stalled and wouldn’t start in a home-improvement store parking lot. I purchased the hand tools I needed to do the diagnosis from the home-store, and got it running again in about 90 minutes and $25 …🙂 Simpler times, no computer degree necessary! ---
**Author:** ![TheWonderful90s](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thewonderful90s/32/29584_2.png) [@TheWonderful90s](https://community.cartalk.com/u/TheWonderful90s)\ **Post date:** [November 9, 2023, 2:32am UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/26 "2023-11-09T02:32:04Z")
> [@bkelley502\_187614](#): > > The other day I tried something like that, but I didn’t put in 2nd. I just revved the engine, and yes, it will misfire after a few moments. So it misfired with no load on it. Then it is not a fuel starvation issues. It seems like the fault happens at high RPM only. I don’t know of anything that would stop working correctly at high RPM, except an electrical problem related to the crankshaft position sensor, the ECU, or the wires that go between those two things. They may have damaged or moved the crankshaft position sensor when they were working in there to replace the seal. Someone with a scope might probe the signal coming from it and compare it to a known good Corolla or car that uses the same CPS. It could also be an ignition problem. At high RPM a problem in the ignition coil or ignitor might cause the spark to become weak and misfires will start to happen. Obviously the problem isn’t happening at lower speeds. Weaking ignition is hard to diagnose. ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [November 9, 2023, 2:39am UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/27 "2023-11-09T02:39:19Z")
Then the crank sensor could be the problem. > **[Bad Crankshaft Position Sensor Symptoms & Problems](https://www.1aauto.com/content/articles/bad-or-failing-crankshaft-position-sensor-symptoms)** > > Problems with the crankshaft sensor will often present as problems with engine timing. If you think your sensor has failed, here are some common symptoms of a bad crankshaft sensor that can help you in determining whether or not it has failed. And again, a bad crank sensor doesn’t always cause the Check Engine light to turn on. Tester ---
**Author:** ![bkelley502\_187614](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bkelley502_187614/32/36924_2.png) [@bkelley502\_187614](https://community.cartalk.com/u/bkelley502_187614)\ **Post date:** [November 9, 2023, 2:44am UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/28 "2023-11-09T02:44:54Z")
> [@TheWonderful90s](#): > > I don’t know of anything that would stop working correctly at high RPM, except an electrical problem related to the crankshaft position sensor, the ECU, or the wires that go between those two things. They may have damaged or moved the crankshaft position sensor when they were working in there to replace the seal. Interesting. What is the ECU? Also, can you provide an image? Not that I’ll try and make any repairs (due to me having Long Covid and generally not being knowledgeable about Toyotas) but I’m genuinely curious. Maybe something else to note. When I drive the car, and it goes to shift from one gear to the next, I’ll let off the accelerator just a bit. I do that until it’s up to cruising speed. I’ve noticed that it will lose power when it shifts from one gear to the next if I don’t do that. Therefore my take off speeds are VERY SLOW and people around me get annoyed. Thanks for your help. ---
**Author:** ![TheWonderful90s](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/thewonderful90s/32/29584_2.png) [@TheWonderful90s](https://community.cartalk.com/u/TheWonderful90s)\ **Post date:** [November 9, 2023, 2:46am UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/29 "2023-11-09T02:46:55Z")
> [@bkelley502\_187614](#): > > I’ve noticed that it will lose power when it shifts from one gear to the next if I don’t do that. When you give it gas does it tend to misfire? This is a symptom of weak ignition. The ECU, engine control unit, is the computer that controls the engine. It is usually behind the glove compartment. They sometimes do fail or start to act up. I doubt it in this case. More likely an ignition component or faulty sensor. ---
**Author:** ![bkelley502\_187614](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bkelley502_187614/32/36924_2.png) [@bkelley502\_187614](https://community.cartalk.com/u/bkelley502_187614)\ **Post date:** [November 9, 2023, 2:46am UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/30 "2023-11-09T02:46:59Z")
> [@Tester](#): > > Then the crank sensor could be the problem. Thanks for the link to that webpage. I will read through it. ---
**Author:** ![bkelley502\_187614](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bkelley502_187614/32/36924_2.png) [@bkelley502\_187614](https://community.cartalk.com/u/bkelley502_187614)\ **Post date:** [November 9, 2023, 2:48am UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/31 "2023-11-09T02:48:43Z")
Yes, it definitely tends to misfire. Thing is, it didn’t start doing that until after the oil seal was replaced. So I thought the mechanic had to have damaged something when he put things back together or maybe didn’t align the gears quite right when the timing belt was put back on as others have suggested. ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [November 9, 2023, 3:13am UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/32 "2023-11-09T03:13:12Z")
It’s the engine computer. It gets blamed a lot unfairly. I used to carry a spare computer just to rule it out. Never the problem. ---
**Author:** ![bkelley502\_187614](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bkelley502_187614/32/36924_2.png) [@bkelley502\_187614](https://community.cartalk.com/u/bkelley502_187614)\ **Post date:** [November 9, 2023, 1:43pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/33 "2023-11-09T13:43:12Z")
Someone on my Facebook page said it could be the kick down solenoid. Is there such a thing on my car? ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [November 9, 2023, 6:28pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/34 "2023-11-09T18:28:30Z")
That would just drop it into passing gear, not affect engine operation. ---
**Author:** ![bkelley502\_187614](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bkelley502_187614/32/36924_2.png) [@bkelley502\_187614](https://community.cartalk.com/u/bkelley502_187614)\ **Post date:** [November 9, 2023, 6:54pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/35 "2023-11-09T18:54:16Z")
Thanks. So far, including this suggestion, this is what I got as possible causes: EGR MAP TPS ECU Crankshaft position sensor Bad timing Timing belt misaligned Kick down solenoid Bad Ground Vacuum leak Fuel pressure Oh, and someone else suggested the oil filter not being installed correctly I hope the Toyota folks can figure it out! ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [November 9, 2023, 6:57pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/36 "2023-11-09T18:57:19Z")
> [@bkelley502\_187614](#): > > Oh, and someone else suggested the oil filter not being installed correctly That someone doesn’t know anything about cars, Tester ---
**Author:** ![bkelley502\_187614](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bkelley502_187614/32/36924_2.png) [@bkelley502\_187614](https://community.cartalk.com/u/bkelley502_187614)\ **Post date:** [November 9, 2023, 7:05pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/37 "2023-11-09T19:05:17Z")
> [@Tester](#): > > That someone doesn’t know anything about cars, Which is why I declined his offer to look at the car! 😆 ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [November 9, 2023, 7:32pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/38 "2023-11-09T19:32:18Z")
Just a word of advice, when you see the dealer don’t treat them like 3rd graders and tell them to check egr, fuel pressure, oil filter, etc etc. just be clear on the exact symptoms and let them do the analysis. ---
**Author:** ![bkelley502\_187614](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bkelley502_187614/32/36924_2.png) [@bkelley502\_187614](https://community.cartalk.com/u/bkelley502_187614)\ **Post date:** [November 9, 2023, 7:46pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/39 "2023-11-09T19:46:39Z")
> [@bing](#): > > Just a word of advice, when you see the dealer don’t treat them like 3rd graders and tell them to check egr, fuel pressure, oil filter, etc etc. just be clear on the exact symptoms and let them do the analysis. I retired from my government job back in April 2023. I worked for a flying squadron at a local military base. Those folks were the bravest, most honorable and dedicated people I ever worked for and with over my 20 years of government service. I knew a lot about what they did and why, but one thing I never did was try and tell them how to fly their planes. So yes, your point is well taken. I’m just going to point at the car and say something akin to, “car brokey, please fixy.” 😁 Thanks! ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [November 9, 2023, 8:28pm UTC](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728/40 "2023-11-09T20:28:19Z")
Thank you for your service as they say. You deserve it. I don’t mean to demean the sentiment but when the dealer looked at my drivers license he said thank you for your service. I said don’t thank me I just went to meetings for six years. Thank those folks that actually got shot at. [Previous page](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728.md?page=1) [Next page](https://community.cartalk.com/t/car-stalls-when-trying-to-pass/193728.md?page=3)