Ford - F150 :: 1987 - Truck Hesitates When Giving It Gas
Mar 6, 2011
The truck will not get up and go. When you step on the gas it cuts out and acts like it is going to die. When you give it a lot of gas in idle it also makes a popping sound. When I first tried to figure out what was wrong the catalytic converter got red hot, so I took it to a muffler shop. They said it was not the cc. They then put a new distributer cap on it and an EGR sensor. Still does not run right. The following is what I have put new on it since:
Spark plugs and wires
EGR Valve Throttle position sensor
Fuel filter Fuel Pressure Regulator
Took it to another muffler shop again they said it was not the cc and did a throttle body clean out. I have put fuel injecter cleaner in the gas. When there was a gauge on the fuel pressure regulator, the fuel pressure did not go above 30 PSI and when you stepped on the gas, the gauge read between 10 and 5. Also it does this more so when driving rather than idle and especially when you have to give it gas (like going up a hill) and it seems to hesitate more so after being warmed up. The fuel pump is working according the the ASE master mechanic that tested it with his gauges.
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I have a 1987 ford F150 302 we were ran off the road and went over a side walk. When we came to a stop the truck cut off. The truck was towed back home and have been unable to crank it since then. We have checked the inertia switch, checked the firing, and changed plugs in it. The trucks will turn over but won't crank.
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I have a 95 Monte Carlo LS it has 53,000 miles and When I go to give it gas it hesitates and the rpm goes down and then I let off the gas and do it slowly and its fine. Why this is happening all of a sudden. And my check engine light is on.
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I'm working on a 1987 Ford F150 that's cutting out at speeds above 45mph. The ignition system and fuel pressure checks out OK, but it still cuts out at speed. Today I noticed a new symptom and a rather bizarre one at that. If you slam a door or hood, the engine speeds up 500 rpm and then settles back down.
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I just put an '86 5.0 engine from an F150 2wd pickup in my '87 truck of the same model. The motor was running when pulled but when I set in the '87, it won't run. I've replaced coil, distributor assembly, plugs, wires, throttle body, checked timing etc. I've got spark through the plugs and fuel in the cylinder but with no luck. Don't know where to turn next.
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I have an 87 f150 inline 6 efi. The truck will not rev over 2000 rpm even when idling. It has a new fuel filter. What this could be?
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I'd like to convert my power steering to manual. I've done this to my Mustang, but never a vehicle this long and heavy. Looking for impressions of the results. Also, any special tools that may be required for the swap.
My truck is a 1987 F-150 4x2 extended-cab long-bed with a 351w and C6.
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1987 f150 302 4spd 4x4. When I bought the truck 4 years and 12K miles ago the orig owner had just installed a new front pump (in tank) and new switch thing on the frame rail. He said shortly after that the rear pump stopped working so he just ran off of the front tank. That's what I've been doing also except as of the last few months it has started to leak from the rear tank (I don't ever put gas in it and was empty when I bought it) and dies periodically from time to time? Where the leak could be coming from. I do suspect the dying has to do with the leak though.
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I have a 1987 ford f150 with a EFI throttle bodied 5.0L (302), and I have taken it to a mechanic multiple times because for one it has a dead spot in the throttle and it dies when you let off the gas at a stop light or sign. But the mechanic said he checked everything he knew to check and found nothing wrong with it. I also had my cousin read the computer previous to this and we couldn't pull the codes from it.
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I have a 1987 automatic Nissan Sentra XE- two barrel carburetor, mileage 212,880. The car has one major problem that is going to get me hit driving it in rush hour. Most mechanics will not touch the car due to being carburetor.
Let me explain: the car idles real rough at times, hesitates at stop signs and red lights, about stalls out on me when I press the gas pedal to go or when I start to make a left or right turn. However, other times the car has little to no hesitation and idles perfectly. I have not been able to come up with a good a pattern with this problem.
I have replaced, fuel pump & filter, spark plug wires, coil, distributor, ecu computer, ran sea foam through the fuel system and have replaced many vacuum hoses.
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Why the frame mounted fuel pump might run after the key is turned off? Then when you turn the key on it may or not run. If it does run it keeps running. shouldn't this shut off after pressurizing the line? is their a pressure switch in the pump that's failing? This has the 3 pump system...
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I have an 87 F150 4x4 4.9L EFI with a single tank. Fuel pumps keep running even when the key is off. I tried swapping relays but the problem still exists. The engine will start and run OK for about 15 secs. then die. I installed a new low pressure pump, high pressure pump seems to be OK. I also installed new fuel filters. I dont want to just throw parts at this truck, where do I go from here?
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Looking for a wiring diagram for a F-150 XLT LARIAT 5.8L 4BBL, all the books I have looked at show the wiring for this year with fuel injection and this truck came with a 351W with a Holley 600 4BBL, I have a few wire's in the engine compartment that melted away all the insulation, they are located close to where the harness passes the firewall before the ignition module. Is this a common problem on old models ?. Need a clear copy of the correct diagram for a f-150 1987 with carburetor, how I can get a copy so I can fix this problem before it gets worse.
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I got my truck to throw some codes. As many of you know I have been having an issue where when I stomp my truck to the floor it sputters and hesitates. Some days its worse then others. It only happens under a load, and it generally doesn't last to long, however today it did it a whole bunch and lasted for a good bit any time I got on it hard. My engine light begin to flash, and there was a smell of exhaust. I went to Autozone quickly as possible. The guy read the code, and this time no lean codes, just a "P0430" which the code reader said was O2 Sensor Bank 2. It also had a pending code, which was "multiple cylinder misfire detected". So my question is can an O2 sensor cause this? Could my CAT on that side be bad?
If that is all it is, is a bad cat or O2 sensor then I will be very happy... Like I said I can sit in my driveway in park all day long, and rev outta my truck. It will never misfire or hesitate at all. Soon is I put it in gear and am going down the road and punch it sometimes it pop and sputter.
Another cool thing is some how their code reader was able to read my ABS light, and I found out that this whole time I have had a bad ABS Speed Sensor in the rear end. That is a plus as well.
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I have a 1987 ford 350 when i go up a steep hill the truck starts to skip and break down to a point where I have to pull over i just put in new fuel pump in tank, what could be the problem only happens on hills.
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I've got an 87 ford ranger 4x4. The truck won't start. The ignition is firing off with the key on engine off. When I got the truck the transfer case was blown. The people I got the truck from drove it to here it sat. I check the wiring but the transfer case to make sure it diet get damaged causing a sort. When I got the pcm was missing. Took one out of a bronco 2 and changed the relays on the fender. Here what I've done so far
Relays
Pcm
Complete tune up.
Distributor and ignition module
Replaced and repair some grounds.
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302 V8. Autolite 2150 carb. Auto-tranny. My vintage Ford truck which I love has developed a problem where it idles too fast for too long after warm-up. What I mean is that it is normal when it works correctly for it to idle fast for a few minutes until it warms up, at which point the idle speed slows down to normal. The way it works when it is working correctly, after a few minutes to warm up, I step on the gas pedal briefly, and the idle speed to kicks down. That's the way it is supposed to work. It seems actually like there are actually three idle speeds when it is working correctly. Fast, not quite as fast, and normal, all accessed via the kick down operation. Working correctly, it takes maybe three minutes to kick down the two steps to the normal idle speed. Does that sound right?
Anyway, the problem is that now it stays at the highest idle speed for 15 minutes. Eventually it kicks down to normal. But the high idle speed is too much for 15 minutes. Plus as it warms up the high idle speed becomes even higher since it doesn't kick down like it should. So it becomes difficult to keep the speed below 25 mph even w/out pressing on the gas pedal. It idles at about 25 mph for 15 minutes as it warms up!
I looked at my Chilton's manual -- better than nothing, but barely -- and it mentions something about a vacuum choke kickdown, a heat riser gadget, and the auto-choke. How to test each one to find what the problem is?
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I have a '96 Chevy Silverado that twice (in about as many months) has had some trouble starting. When I turn the key the engine starts to crank, then there is a loud pop and the engine stops. When I crank it again the engine will start, although more slowly than usual. What could be wrong?
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After truck gets warm it won't restart.
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Mechanics cannot find out why it occasionally does not start and has to be jumped off. If left not driven for a day walk out next morning try to start and it has to be jumped off. It only has 8,000 miles on it. 2013 Ford F150
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I have recently purchased a 1999 F150 with a v-6, standard transmission (5 speed). Previous owner said he had just replaced the clutch. Here is the problem, after the truck has been running a while and after stopping the truck will not shift into gear. It does not grind or make any noise, it just won't go into any gear. The only solution is to shut the engine off, place it in gear and restart the engine. During normal travel the transmission shifts up and down without any problems. The clutch does have a slave cylinder.
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